Vulnerability · Published Oct 26, 2026 · Assigned by mitre
CVE-2026-116638
High 7.5
In plain English
A high-severity authentication bypass in the affected software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 63.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The Windows Recovery Environment (WinRE) in Windows 10 and 11 may allow an attacker to bypass firmware security controls, including administrator-configured UEFI/BIOS passwords. An attacker with physical or administrative access to a device may be able to leverage WinRE-related boot mechanisms to circumvent firmware protections and gain unauthorized access to system resources.
Affected products (as reported)
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N