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    2 vulnerabilities by LegacyUpdate

    CVE-2026-97381 (GCVE-0-2026-97381)

    Vulnerability from nvd – Published: 2026-10-13 21:08 – Updated: 2026-10-13 21:08
    VLAI
    Title
    Legacy Update ActiveX control accepts unauthorized hosting origins
    Summary
    Legacy Update is a tool for activating and installing updates on legacy Windows PCs. Legacy Update 1.12.0 through 1.13.1 contains an origin validation error in the IsPermitted method of its ActiveX control. After successfully reading the hosting document's hostname, a hostname that is not on the permitted list falls through without setting E_ACCESSDENIED, causing IsPermitted to return S_OK. An attacker who induces a user to visit a malicious webpage in Internet Explorer can invoke the control to enumerate update and system information, install updates without consent, display dialogs, or restart the computer when a reboot is pending. This issue was fixed in Legacy Update 1.13.2.
    Severity
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-346 - Origin Validation Error
    • CWE-393 - Return of Wrong Status Code
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7654 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    LegacyUpdate LegacyUpdate Affected: >= 1.12.0, < 1.13.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "LegacyUpdate",
          "vendor": "LegacyUpdate",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.12.0, \u003c 1.13.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Legacy Update is a tool for activating and installing updates on legacy Windows PCs. Legacy Update 1.12.0 through 1.13.1 contains an origin validation error in the IsPermitted method of its ActiveX control. After successfully reading the hosting document\u0027s hostname, a hostname that is not on the permitted list falls through without setting E_ACCESSDENIED, causing IsPermitted to return S_OK. An attacker who induces a user to visit a malicious webpage in Internet Explorer can invoke the control to enumerate update and system information, install updates without consent, display dialogs, or restart the computer when a reboot is pending. This issue was fixed in Legacy Update 1.13.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-393",
              "description": "CWE-393: Return of Wrong Status Code",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T21:08:05.334Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/security/advisories/GHSA-f4g7-4gmx-jfgf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/security/advisories/GHSA-f4g7-4gmx-jfgf"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/commit/7d62f0bfaa770d74cd6e2cb0bac9c1907df48033",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/commit/7d62f0bfaa770d74cd6e2cb0bac9c1907df48033"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/commit/ae1c46c97f39a55a1937784d9f9beb30aa9147fd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/commit/ae1c46c97f39a55a1937784d9f9beb30aa9147fd"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/releases/tag/v1.13.2.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/releases/tag/v1.13.2.0"
        },
        {
          "name": "https://legacyupdate.net/news/2026/07/21/legacy-update-1-13-2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://legacyupdate.net/news/2026/07/21/legacy-update-1-13-2"
        }
      ],
      "source": {
        "advisory": "GHSA-f4g7-4gmx-jfgf",
        "discovery": "UNKNOWN"
      },
      "title": "Legacy Update ActiveX control accepts unauthorized hosting origins"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-97381",
    "datePublished": "2026-10-13T21:08:05.334Z",
    "dateReserved": "2026-09-24T14:16:20.201Z",
    "dateUpdated": "2026-10-13T21:08:05.334Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-97381 (GCVE-0-2026-97381)

    Vulnerability from cvelistv5 – Published: 2026-10-13 21:08 – Updated: 2026-10-13 21:08
    VLAI
    Title
    Legacy Update ActiveX control accepts unauthorized hosting origins
    Summary
    Legacy Update is a tool for activating and installing updates on legacy Windows PCs. Legacy Update 1.12.0 through 1.13.1 contains an origin validation error in the IsPermitted method of its ActiveX control. After successfully reading the hosting document's hostname, a hostname that is not on the permitted list falls through without setting E_ACCESSDENIED, causing IsPermitted to return S_OK. An attacker who induces a user to visit a malicious webpage in Internet Explorer can invoke the control to enumerate update and system information, install updates without consent, display dialogs, or restart the computer when a reboot is pending. This issue was fixed in Legacy Update 1.13.2.
    Severity
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-346 - Origin Validation Error
    • CWE-393 - Return of Wrong Status Code
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7654 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    LegacyUpdate LegacyUpdate Affected: >= 1.12.0, < 1.13.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "LegacyUpdate",
          "vendor": "LegacyUpdate",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.12.0, \u003c 1.13.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Legacy Update is a tool for activating and installing updates on legacy Windows PCs. Legacy Update 1.12.0 through 1.13.1 contains an origin validation error in the IsPermitted method of its ActiveX control. After successfully reading the hosting document\u0027s hostname, a hostname that is not on the permitted list falls through without setting E_ACCESSDENIED, causing IsPermitted to return S_OK. An attacker who induces a user to visit a malicious webpage in Internet Explorer can invoke the control to enumerate update and system information, install updates without consent, display dialogs, or restart the computer when a reboot is pending. This issue was fixed in Legacy Update 1.13.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-393",
              "description": "CWE-393: Return of Wrong Status Code",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T21:08:05.334Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/security/advisories/GHSA-f4g7-4gmx-jfgf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/security/advisories/GHSA-f4g7-4gmx-jfgf"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/commit/7d62f0bfaa770d74cd6e2cb0bac9c1907df48033",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/commit/7d62f0bfaa770d74cd6e2cb0bac9c1907df48033"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/commit/ae1c46c97f39a55a1937784d9f9beb30aa9147fd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/commit/ae1c46c97f39a55a1937784d9f9beb30aa9147fd"
        },
        {
          "name": "https://github.com/LegacyUpdate/LegacyUpdate/releases/tag/v1.13.2.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LegacyUpdate/LegacyUpdate/releases/tag/v1.13.2.0"
        },
        {
          "name": "https://legacyupdate.net/news/2026/07/21/legacy-update-1-13-2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://legacyupdate.net/news/2026/07/21/legacy-update-1-13-2"
        }
      ],
      "source": {
        "advisory": "GHSA-f4g7-4gmx-jfgf",
        "discovery": "UNKNOWN"
      },
      "title": "Legacy Update ActiveX control accepts unauthorized hosting origins"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-97381",
    "datePublished": "2026-10-13T21:08:05.334Z",
    "dateReserved": "2026-09-24T14:16:20.201Z",
    "dateUpdated": "2026-10-13T21:08:05.334Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}