Auth bypass in Microsoft Windows 10
CVE-2021-31970
Windows TCP/IP Driver Security Feature Bypass Vulnerability
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · 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 8.1 — versions 6.3.0
- Microsoft Windows 8.1
Weakness classification (CWE)
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31970 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/163256/Microsoft-Windows-Filtering-Platform-Token… (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31970?
- CVE-2021-31970 is a medium-severity vulnerability in Microsoft Windows 10, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.5/10. Published 2021-06-08.
- How severe is CVE-2021-31970?
- Medium severity. CVSS v3 base score is 5.5 out of 10.