Search criteria

6 vulnerabilities found for GV-VMS V20.0.2 by GeoVision Inc.

CVE-2026-7372 (GCVE-0-2026-7372)

Vulnerability from nvd – Published: 2026-05-04 00:47 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability
Summary
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability. #### Stack-overflow via unconstrained sscanf The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn't limit the size of the extracted content to match the destination buffers' sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables `username` and `password`) then a stack overflow will occur. The data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could lead to full code execution as SYSTEM on the machine running the service.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: 20.0.2
Unaffected: 20.0.2.10
Unaffected: 20.1.0.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-7372",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:12.913Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "20.0.2"
            },
            {
              "status": "unaffected",
              "version": "20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "20.1.0.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.1.0.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.\u003cbr\u003e\u003cbr\u003e#### Stack-overflow via unconstrained sscanf\u003cbr\u003e\u003cbr\u003eThe call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn\u0027t limit the size of the extracted content to match the destination buffers\u0027 sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables  `username` and `password`) then a stack overflow will occur. \n\u003cbr\u003e\n\u003cbr\u003eThe data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could  lead to full code execution as SYSTEM on the machine running the service.\u003cbr\u003e\u003cbr\u003e"
            }
          ],
          "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.\n\n#### Stack-overflow via unconstrained sscanf\n\nThe call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn\u0027t limit the size of the extracted content to match the destination buffers\u0027 sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables  `username` and `password`) then a stack overflow will occur. \n\n\n\nThe data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could  lead to full code execution as SYSTEM on the machine running the service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:38.690Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2369",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:38:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-7372",
    "datePublished": "2026-05-04T00:47:36.651Z",
    "dateReserved": "2026-04-28T23:12:55.269Z",
    "dateUpdated": "2026-05-15T07:45:38.690Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42370 (GCVE-0-2026-42370)

Vulnerability from nvd – Published: 2026-05-04 00:48 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability
Summary
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: 20.0.2
Unaffected: 20.0.2.10
Unaffected: 20.1.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42370",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:11.802Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "20.0.2"
            },
            {
              "status": "unaffected",
              "version": "20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "20.1.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.1.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cbr\u003eA stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability."
            }
          ],
          "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:17.269Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2369",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:38:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-42370",
    "datePublished": "2026-05-04T00:48:05.154Z",
    "dateReserved": "2026-04-26T23:39:08.350Z",
    "dateUpdated": "2026-05-15T07:45:17.269Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42369 (GCVE-0-2026-42369)

Vulnerability from nvd – Published: 2026-05-04 00:47 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server stack overflow vulnerability
Summary
GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the "WebCam Server" feature. Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. Most of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.   #### Stack-overflow via unbound copy of base64 decoded string The `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there's no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: V20.0.2
Unaffected: V20.0.2.10
Unaffected: V20.1.0.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42369",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:13.979Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "V20.0.2"
            },
            {
              "status": "unaffected",
              "version": "V20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "V20.1.0.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.1.0.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the \"WebCam Server\" feature.  Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. \n\u003cbr\u003e\n\u003cbr\u003eMost of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.\u0026nbsp;\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e#### Stack-overflow via unbound copy of base64 decoded string\u003cbr\u003e\u003cbr\u003eThe `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there\u0027s no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service.\u003c/div\u003e"
            }
          ],
          "value": "GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the \"WebCam Server\" feature.  Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. \n\n\n\nMost of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.\u00a0\u00a0\n\n\n\n#### Stack-overflow via unbound copy of base64 decoded string\n\nThe `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there\u0027s no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:15.385Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "third-party-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "url": "https://https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;\u003cspan\u003e(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2333",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:32:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-42369",
    "datePublished": "2026-05-04T00:47:00.507Z",
    "dateReserved": "2026-04-26T23:39:08.350Z",
    "dateUpdated": "2026-05-15T07:45:15.385Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42370 (GCVE-0-2026-42370)

Vulnerability from cvelistv5 – Published: 2026-05-04 00:48 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability
Summary
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: 20.0.2
Unaffected: 20.0.2.10
Unaffected: 20.1.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42370",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:11.802Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "20.0.2"
            },
            {
              "status": "unaffected",
              "version": "20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "20.1.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.1.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cbr\u003eA stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability."
            }
          ],
          "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:17.269Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2369",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:38:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-42370",
    "datePublished": "2026-05-04T00:48:05.154Z",
    "dateReserved": "2026-04-26T23:39:08.350Z",
    "dateUpdated": "2026-05-15T07:45:17.269Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-7372 (GCVE-0-2026-7372)

Vulnerability from cvelistv5 – Published: 2026-05-04 00:47 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability
Summary
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability. #### Stack-overflow via unconstrained sscanf The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn't limit the size of the extracted content to match the destination buffers' sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables `username` and `password`) then a stack overflow will occur. The data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could lead to full code execution as SYSTEM on the machine running the service.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: 20.0.2
Unaffected: 20.0.2.10
Unaffected: 20.1.0.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-7372",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:12.913Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "20.0.2"
            },
            {
              "status": "unaffected",
              "version": "20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "20.1.0.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:20.1.0.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.\u003cbr\u003e\u003cbr\u003e#### Stack-overflow via unconstrained sscanf\u003cbr\u003e\u003cbr\u003eThe call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn\u0027t limit the size of the extracted content to match the destination buffers\u0027 sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables  `username` and `password`) then a stack overflow will occur. \n\u003cbr\u003e\n\u003cbr\u003eThe data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could  lead to full code execution as SYSTEM on the machine running the service.\u003cbr\u003e\u003cbr\u003e"
            }
          ],
          "value": "A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.\n\n#### Stack-overflow via unconstrained sscanf\n\nThe call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn\u0027t limit the size of the extracted content to match the destination buffers\u0027 sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables  `username` and `password`) then a stack overflow will occur. \n\n\n\nThe data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could  lead to full code execution as SYSTEM on the machine running the service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:38.690Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2369",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:38:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-7372",
    "datePublished": "2026-05-04T00:47:36.651Z",
    "dateReserved": "2026-04-28T23:12:55.269Z",
    "dateUpdated": "2026-05-15T07:45:38.690Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42369 (GCVE-0-2026-42369)

Vulnerability from cvelistv5 – Published: 2026-05-04 00:47 – Updated: 2026-05-15 07:45
VLAI?
Title
GeoVision GV-VMS V20 WebCam Server stack overflow vulnerability
Summary
GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the "WebCam Server" feature. Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. Most of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.   #### Stack-overflow via unbound copy of base64 decoded string The `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there's no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service.
CWE
Assigner
GV
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-VMS V20.0.2 Affected: V20.0.2
Unaffected: V20.0.2.10
Unaffected: V20.1.0.0
Create a notification for this product.
Date Public ?
2026-04-27 00:00
Credits
Philippe Laulheret of Cisco Talos. Kelly Patterson of Cisco Talos. Martin Zeiser of Cisco Talos.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42369",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T03:56:13.979Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "GV-VMS V20.0.2",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "V20.0.2"
            },
            {
              "status": "unaffected",
              "version": "V20.0.2.10"
            },
            {
              "status": "unaffected",
              "version": "V20.1.0.0"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.0.2:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.0.2.10:*:windows:*:*:*:*:*",
                  "vulnerable": false
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.1.0.0:*:windows:*:*:*:*:*",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Philippe Laulheret of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos."
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Martin Zeiser of Cisco Talos."
        }
      ],
      "datePublic": "2026-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the \"WebCam Server\" feature.  Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. \n\u003cbr\u003e\n\u003cbr\u003eMost of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.\u0026nbsp;\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e#### Stack-overflow via unbound copy of base64 decoded string\u003cbr\u003e\u003cbr\u003eThe `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there\u0027s no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service.\u003c/div\u003e"
            }
          ],
          "value": "GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the \"WebCam Server\" feature.  Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. \n\n\n\nMost of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication.\u00a0\u00a0\n\n\n\n#### Stack-overflow via unbound copy of base64 decoded string\n\nThe `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there\u0027s no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T07:45:15.385Z",
        "orgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "shortName": "GV"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "third-party-advisory"
          ],
          "url": "https://www.geovision.com.tw/cyber_security.php"
        },
        {
          "url": "https://https://talosintelligence.com/vulnerability_reports/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUser is recommended to download the update from GeoVision\u0027s offical website\u0026nbsp;\u003cspan\u003e(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003eor contact GeoVision Support team\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u0026nbsp;patch file that fixed the vulnerability.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003ehttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "GeoVision GV-VMS version V20.1.0 has patched the reported vulnerability.\u00a0\n\n\nUser is recommended to download the update from GeoVision\u0027s offical website\u00a0(https://www.geovision.com.tw/download/product/GV-VMS%20V20)\n\nor contact GeoVision Support team\n\n\n\n\nFor User currently running V20.0.2 may also visit the following link to download the V20.0.2.10\u00a0patch file that fixed the vulnerability.\u00a0\n\nhttps://php.gvdip.com/phpbb3/viewtopic.php?t=3326"
        }
      ],
      "source": {
        "advisory": "TALOS-2026-2333",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T01:32:00.000Z",
          "value": "Initial Vendor Contact"
        }
      ],
      "title": "GeoVision GV-VMS V20 WebCam Server stack overflow vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-42369",
    "datePublished": "2026-05-04T00:47:00.507Z",
    "dateReserved": "2026-04-26T23:39:08.350Z",
    "dateUpdated": "2026-05-15T07:45:15.385Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}