Search criteria

4 vulnerabilities found for Notepad++ by Notepad++

CVE-2026-6539 (GCVE-0-2026-6539)

Vulnerability from nvd – Published: 2026-04-30 20:31 – Updated: 2026-05-01 14:21
VLAI?
Title
Notepad++ 8.9.3 Format String Injection via nativeLang.xml
Summary
Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents.
CWE
  • CWE-134 - Use of Externally Controlled Format String
Assigner
Impacted products
Vendor Product Version
Notepad++ Notepad++ Affected: 0 , < 8.9.4 (semver)
Create a notification for this product.
Credits
Hazley Samsudin
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6539",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-01T14:21:36.067358Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-01T14:21:46.872Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Notepad++",
          "vendor": "Notepad++",
          "versions": [
            {
              "lessThan": "8.9.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "other",
          "value": "Hazley Samsudin"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents."
            }
          ],
          "value": "Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-134",
              "description": "CWE-134 Use of Externally Controlled Format String",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-30T20:46:17.910Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://notepad-plus-plus.org/news/v894-released/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/notepad-format-string-injection-via-nativelang-xml"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Notepad++ 8.9.3 Format String Injection via nativeLang.xml",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-6539",
    "datePublished": "2026-04-30T20:31:54.961Z",
    "dateReserved": "2026-04-17T17:20:47.595Z",
    "dateUpdated": "2026-05-01T14:21:46.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-3008 (GCVE-0-2026-3008)

Vulnerability from nvd – Published: 2026-04-27 06:04 – Updated: 2026-04-27 13:29
VLAI?
Title
Vulnerability in Notepad++
Summary
Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
CSA
Impacted products
Vendor Product Version
Notepad++ Notepad++ Affected: 8.9.3
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3008",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-27T13:09:36.243190Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-134",
                "description": "CWE-134 Use of Externally-Controlled Format String",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-27T13:29:42.232Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/llgsjsm/cve-2026-3008"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Notepad++",
          "vendor": "Notepad++",
          "versions": [
            {
              "status": "affected",
              "version": "8.9.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSuccessful exploitation of the\nstring injection vulnerability could allow an attacker to obtain memory address\ninformation or crash the application.\u003c/p\u003e"
            }
          ],
          "value": "Successful exploitation of the\nstring injection vulnerability could allow an attacker to obtain memory address\ninformation or crash the application."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T09:31:19.627Z",
        "orgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
        "shortName": "CSA"
      },
      "references": [
        {
          "url": "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-044/"
        },
        {
          "url": "https://community.notepad-plus-plus.org/topic/27500/notepad-v8-9-4-release-candidate"
        },
        {
          "url": "https://github.com/llgsjsm/cve-2026-3008"
        },
        {
          "url": "https://llgsjsm.github.io/cve-2026-3008/"
        },
        {
          "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/issues/17960"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUsers and administrators of the\naffected product version are advised to update to the latest version 8.9.4\nimmediately.\u003c/p\u003e"
            }
          ],
          "value": "Users and administrators of the\naffected product version are advised to update to the latest version 8.9.4\nimmediately."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Vulnerability in Notepad++",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
    "assignerShortName": "CSA",
    "cveId": "CVE-2026-3008",
    "datePublished": "2026-04-27T06:04:22.186Z",
    "dateReserved": "2026-02-23T05:15:46.334Z",
    "dateUpdated": "2026-04-27T13:29:42.232Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-6539 (GCVE-0-2026-6539)

Vulnerability from cvelistv5 – Published: 2026-04-30 20:31 – Updated: 2026-05-01 14:21
VLAI?
Title
Notepad++ 8.9.3 Format String Injection via nativeLang.xml
Summary
Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents.
CWE
  • CWE-134 - Use of Externally Controlled Format String
Assigner
Impacted products
Vendor Product Version
Notepad++ Notepad++ Affected: 0 , < 8.9.4 (semver)
Create a notification for this product.
Credits
Hazley Samsudin
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6539",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-01T14:21:36.067358Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-01T14:21:46.872Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Notepad++",
          "vendor": "Notepad++",
          "versions": [
            {
              "lessThan": "8.9.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "other",
          "value": "Hazley Samsudin"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents."
            }
          ],
          "value": "Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-134",
              "description": "CWE-134 Use of Externally Controlled Format String",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-30T20:46:17.910Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://notepad-plus-plus.org/news/v894-released/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/notepad-format-string-injection-via-nativelang-xml"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Notepad++ 8.9.3 Format String Injection via nativeLang.xml",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-6539",
    "datePublished": "2026-04-30T20:31:54.961Z",
    "dateReserved": "2026-04-17T17:20:47.595Z",
    "dateUpdated": "2026-05-01T14:21:46.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-3008 (GCVE-0-2026-3008)

Vulnerability from cvelistv5 – Published: 2026-04-27 06:04 – Updated: 2026-04-27 13:29
VLAI?
Title
Vulnerability in Notepad++
Summary
Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
CSA
Impacted products
Vendor Product Version
Notepad++ Notepad++ Affected: 8.9.3
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3008",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-27T13:09:36.243190Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-134",
                "description": "CWE-134 Use of Externally-Controlled Format String",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-27T13:29:42.232Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/llgsjsm/cve-2026-3008"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Notepad++",
          "vendor": "Notepad++",
          "versions": [
            {
              "status": "affected",
              "version": "8.9.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSuccessful exploitation of the\nstring injection vulnerability could allow an attacker to obtain memory address\ninformation or crash the application.\u003c/p\u003e"
            }
          ],
          "value": "Successful exploitation of the\nstring injection vulnerability could allow an attacker to obtain memory address\ninformation or crash the application."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T09:31:19.627Z",
        "orgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
        "shortName": "CSA"
      },
      "references": [
        {
          "url": "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-044/"
        },
        {
          "url": "https://community.notepad-plus-plus.org/topic/27500/notepad-v8-9-4-release-candidate"
        },
        {
          "url": "https://github.com/llgsjsm/cve-2026-3008"
        },
        {
          "url": "https://llgsjsm.github.io/cve-2026-3008/"
        },
        {
          "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/issues/17960"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUsers and administrators of the\naffected product version are advised to update to the latest version 8.9.4\nimmediately.\u003c/p\u003e"
            }
          ],
          "value": "Users and administrators of the\naffected product version are advised to update to the latest version 8.9.4\nimmediately."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Vulnerability in Notepad++",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
    "assignerShortName": "CSA",
    "cveId": "CVE-2026-3008",
    "datePublished": "2026-04-27T06:04:22.186Z",
    "dateReserved": "2026-02-23T05:15:46.334Z",
    "dateUpdated": "2026-04-27T13:29:42.232Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}