CVE-2026-54107
Windows Win32k Elevation of Privilege Vulnerability
- Published
- Jul 14, 2026
- Updated
- Oct 8, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 6, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLow · next 30 days
- Percentile
- 10.9%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows an authorized attacker to elevate privileges locally.
Sources
- CVE-2026-54107Research
Root-cause analysis of CVE-2026-54107: a use-after-free in Windows win32kfull.sys with race condition debugging, static analysis, MSRC triage insights, and practical kernel exploitation research.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.