Sep 2026: Windows Security Health Service Elevation of Privilege Vulnerability
CVE-2026-78457 Published on September 8, 2026
Windows Security Health Service Elevation of Privilege Vulnerability
Use after free in Windows Security Health Service allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-78457 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-78457
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Affected Versions
Microsoft Windows 11 Version 24H2:- Version 10.0.26100.0 and below 10.0.26100.9445 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9445 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2954 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5622 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33438 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33438 is affected.