Nov 2026: Windows Hyper-V Denial of Service Vulnerability
CVE-2026-119955 Published on November 10, 2026
Windows Hyper-V Denial of Service Vulnerability
Uncontrolled resource consumption in Windows Hyper-V allows an authorized attacker to deny service locally.
Vulnerability Analysis
Weakness Type
What is a Memory Leak Vulnerability?
The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.
CVE-2026-119955 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2026-119955
Want to know whenever a new CVE is published for Microsoft products? stack.watch will email you.
Affected Versions
Microsoft Windows 11 version 23H2:- Version 10.0.22631.0 and below 10.0.22631.7711 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7711 is affected.
- Version 10.0.26100.0 and below 10.0.26100.9974 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9974 is affected.
- Version 10.0.28000.0 and below 10.0.28000.3501 is affected.
- Version 10.0.26300.0 and below 10.0.26300.9974 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5870 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33822 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33822 is affected.