Vulnerability in Microsoft Windows 10
CVE-2023-21771
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Microsoft Windows 10 — versions 20h2, 21h2, 22h2
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19043.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows 11 — versions 21h2, 22h2
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows Server 2022 — versions 10.0.20348.0
- Microsoft Windows Server 2022
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21771 (vendor-advisory)
Frequently asked questions
- What is CVE-2023-21771?
- CVE-2023-21771 is a high-severity vulnerability in Microsoft Windows 10, classified under CWE-591. CVSS score: 7.0/10. Published 2023-01-10.
- How severe is CVE-2023-21771?
- High severity. CVSS v3 base score is 7.0 out of 10.