CVE-2026-97381

CriticalCVSS 9.9/10Last modified Oct 17, 2026

Description

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.

Metrics

CVSS 3.1 9.9/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-346 CWE-393

Affected software

No affected versions have been published.

Timeline

Published: Oct 13, 2026
Last modified: Oct 17, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-97399.4Vulnerable to DNS rebinding attacks when using SSE (http://b/499408790). During the beta phase, we implemented `allowed-origins` and `allowe CVE-2026-973947.5kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.143.0, openapi3filter accepts OpenAPI 3.1 array schemas without CVE-2026-973958.1Apache Polaris allows an authenticated principal with permission to create or update Iceberg table properties to set FileIO client settings CVE-2026-973966.4The Email Marketing for WordPress and WooCommerce – Retainful plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'dat CVE-2026-973987.2The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'synopsis' Shortcode Attribute in all v CVE-2026-973993.7The strncasecmp function in the GNU C Library 2.24 and later optimized for the Power8 architecture may read one byte beyond the input size l CVE-2026-97407.5A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially CVE-2026-974006.8In Eclipse OpenJ9 versions up to 0.63, opening a supplied diagnostic dump bundle with the jdmpview tool, or equivalent DTFJ code, may cause CVE-2026-974049.2In OpenStack Zaqar before 22.0.2, WSGI transport mishandles the URL-Signature header. By sending a request with an empty URL-Signature heade CVE-2026-97406XERJ Console API bearer tokens can bypass the passkey‑only authentication requirement and directly invoke the API‑token creation endpoint, a CVE-2026-97407In the Linux kernel, the following vulnerability has been resolved: ASoC: rockchip: rockchip_pdm: Handle runtime PM resume failures in set_CVE-2026-97408In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate connectionless PSM length Connectionless L2