Out-of-bounds Read in Microsoft Windows 10 20h2
CVE-2023-21539
Windows Authentication Remote Code Execution Vulnerability
Vulnerability class: Buffer Overflow
EPSS: 0.012 (64.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_10_20h2
- Microsoft Windows_10_21h2
- Microsoft Windows_10_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_21h2
- Microsoft Windows_11_22h2
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory)
Frequently asked questions
- What is CVE-2023-21539?
- CVE-2023-21539 is a high-severity vulnerability in Microsoft Windows 10 20h2, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2023-01-10.
- How severe is CVE-2023-21539?
- High severity. CVSS v3 base score is 7.5 out of 10.