Buffer overflow in Microsoft Windows 10
CVE-2021-31954
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Microsoft Windows 10 — versions 20h2, 21h1, 1607
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h1 — versions 10.0.0
- Microsoft Windows 7 — versions 6.1.0
- Microsoft Windows 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31954 (Patch, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-668/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31954?
- CVE-2021-31954 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-06-08.
- How severe is CVE-2021-31954?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-31954 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.