CVE-2026-12846 (GCVE-0-2026-12846)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:34 – Updated: 2026-06-24 12:55
VLAI
Title
GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
Summary
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable: #### Net Mask field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v6 = strlen(g_network_config->net_mask); memcpy(&reply_buf[184], g_network_config->net_mask, v6);
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 12:55 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
GV CNA under the mitre root
CNA scorecard B 82/100 over 78 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
GeoVision Inc. GV-I/O Box 4E Affected: V2.09
Unaffected: v2.12
    cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-17 03:10
Credits
Philippe Laulheret of Cisco Talos Kelly Patterson of Cisco Talos Robert Sherwin of Cisco Talos
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-12846",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-24T12:55:27.854943Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-24T12:55:36.396Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "GV-I/O Box 4E",
          "vendor": "GeoVision Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "V2.09"
            },
            {
              "status": "unaffected",
              "version": "v2.12"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.12:*:linux:*:*:*:*:*",
                  "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": "Robert Sherwin  of Cisco Talos"
        }
      ],
      "datePublic": "2026-06-17T03:10:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\u003cbr\u003e\n\u003cbr\u003eUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\u003cbr\u003e\u003cbr\u003e#### Net Mask field stack overflow\u003cbr\u003e\u003cbr\u003eThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\u003cbr\u003e\n\u003cbr\u003e      v6 = strlen(g_network_config-\u0026gt;net_mask);\n\u003cbr\u003e      memcpy(\u0026amp;reply_buf[184], g_network_config-\u0026gt;net_mask, v6);\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c/div\u003e"
            }
          ],
          "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Net Mask field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v6 = strlen(g_network_config-\u003enet_mask);\n\n      memcpy(\u0026reply_buf[184], g_network_config-\u003enet_mask, v6);"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "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-121",
              "description": "CWE-121 Stack-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T03:34:25.543Z",
        "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/TALOS-2026-2377"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-21T07:34:00.000Z",
          "value": "Finder Reports Vulnerabilties to Vendor"
        }
      ],
      "title": "GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
    "assignerShortName": "GV",
    "cveId": "CVE-2026-12846",
    "datePublished": "2026-06-24T03:34:25.543Z",
    "dateReserved": "2026-06-22T00:26:45.854Z",
    "dateUpdated": "2026-06-24T12:55:36.396Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-12846",
      "date": "2026-11-14",
      "epss": "0.00598",
      "percentile": "0.49225"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Linux"
                ],
                "product": "GV-I/O Box 4E",
                "vendor": "GeoVision Inc.",
                "versions": [
                  {
                    "status": "affected",
                    "version": "V2.09"
                  },
                  {
                    "status": "unaffected",
                    "version": "v2.12"
                  }
                ]
              }
            ],
            "source": "0df08a0e-a200-4957-9bb0-084f562506f9"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Net Mask field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v6 = strlen(g_network_config-\u003enet_mask);\n\n      memcpy(\u0026reply_buf[184], g_network_config-\u003enet_mask, v6);"
          },
          {
            "lang": "es",
            "value": "GV-I/O Box 4E es un dispositivo embebido inteligente con 4 entradas y 4 salidas de rel\u00e9 que puede ser controlado a trav\u00e9s de Ethernet y RS-485.\n\nDVRSearch es un servicio ejecut\u00e1ndose por defecto en el IOBox, escuchando mensajes UDP en el puerto 10001. Cualquier usuario en la red puede enviar mensajes a este servicio e interactuar con \u00e9l.\n\nAl recibir un mensaje UDP, el servidor lee como m\u00e1ximo 1460 bytes en un b\u00fafer local y un puntero al b\u00fafer se almacena en una variable global:\n\n#### Desbordamiento de pila en el campo de m\u00e1scara de red\n\nEl siguiente c\u00f3digo es vulnerable a un desbordamiento de pila que es controlado por el atacante:\n\n\u201d\u201d\u201c\n      v6 = strlen(g_network_config  -\u003e  net_mask);\n\n      memcpy(\u0026reply_buf[184], g_network_config  -\u003e  net_mask, v6);\n\u201d\u201d\u201d"
          }
        ],
        "id": "CVE-2026-12846",
        "lastModified": "2026-10-25T23:10:00.167",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 10.0,
                "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"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 6.0,
              "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-12846",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-24T12:55:27.854943Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-06-24T05:17:26.463",
        "references": [
          {
            "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377"
          },
          {
            "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
            "url": "https://www.geovision.com.tw/cyber_security.php"
          }
        ],
        "sourceIdentifier": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-121"
              }
            ],
            "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-12846",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-24T12:55:27.854943Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-24T12:55:32.702Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Linux"
              ],
              "product": "GV-I/O Box 4E",
              "vendor": "GeoVision Inc.",
              "versions": [
                {
                  "status": "affected",
                  "version": "V2.09"
                },
                {
                  "status": "unaffected",
                  "version": "v2.12"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.12:*:linux:*:*:*:*:*",
                      "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": "Robert Sherwin  of Cisco Talos"
            }
          ],
          "datePublic": "2026-06-17T03:10:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\u003cbr\u003e\n\u003cbr\u003eUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\u003cbr\u003e\u003cbr\u003e#### Net Mask field stack overflow\u003cbr\u003e\u003cbr\u003eThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\u003cbr\u003e\n\u003cbr\u003e      v6 = strlen(g_network_config-\u0026gt;net_mask);\n\u003cbr\u003e      memcpy(\u0026amp;reply_buf[184], g_network_config-\u0026gt;net_mask, v6);\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c/div\u003e"
                }
              ],
              "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Net Mask field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v6 = strlen(g_network_config-\u003enet_mask);\n\n      memcpy(\u0026reply_buf[184], g_network_config-\u003enet_mask, v6);"
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-100",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-100 Overflow Buffers"
                }
              ]
            }
          ],
          "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-121",
                  "description": "CWE-121 Stack-based buffer overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-24T03:34:25.543Z",
            "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/TALOS-2026-2377"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "timeline": [
            {
              "lang": "en",
              "time": "2026-04-21T07:34:00.000Z",
              "value": "Finder Reports Vulnerabilties to Vendor"
            }
          ],
          "title": "GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command",
          "x_generator": {
            "engine": "Vulnogram 1.0.2"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "assignerShortName": "GV",
        "cveId": "CVE-2026-12846",
        "datePublished": "2026-06-24T03:34:25.543Z",
        "dateReserved": "2026-06-22T00:26:45.854Z",
        "dateUpdated": "2026-06-24T12:55:36.396Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.