CVE-2026-50402
HighPublished
NTFS Elevation of Privilege Vulnerability
- Published
- Jul 14, 2026
- Updated
- Sep 17, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 17, 2026
Primary CVSS
7.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H0.3%
Low · next 30 days
- Percentile
- 26.7%
- Model date
- Sep 21, 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
Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.
Sources
1- CVE-WriteupsResearch
Security vulnerability research writeups. CVE-2026-50402: Windows NTFS Elevation of Privilege (CVSS 7.8)
Responsible use
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