CVE-2026-97381

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-97381
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97381.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-97381
Aliases
  • GHSA-f4g7-4gmx-jfgf
Published
2026-10-13T21:08:05Z
Modified
2026-10-14T10:47:04Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Legacy Update ActiveX control accepts unauthorized hosting origins
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-346",
        "CWE-393"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97381.json"
}
References

Affected packages

Git / github.com/legacyupdate/legacyupdate

Affected ranges

Type
GIT
Repo
https://github.com/legacyupdate/legacyupdate
Events
Introduced
cb8a3d8763c1bf082274257ebbf28a5a1106193b
Fixed
e699d641a0b9f36968a2eac1cd1412dc66ce29d9
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "1.12.0"
        },
        {
            "fixed":  "1.13.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v1.*
v1.12.0.0
v1.12.1.0
v1.13.0.0
v1.13.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97381.json"