Vulnerability · Published Jan 13, 2026 · Assigned by microsoft
CVE-2026-20929Windows HTTP.sys Elevation of Privilege Vulnerability
High 7.5
In plain English
A high-severity improper access control in Windows 10 Version 1607 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)2.9%top 13.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Metasploit
Official description
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Windows HTTP.sys Elevation of Privilege Vulnerability vendor-advisory, patch