Use After Free in Microsoft Windows 11 Version 22h2
CVE-2024-43642
Windows SMB Denial of Service Vulnerability
Vulnerability class: Use-After-Free
EPSS: 0.615 (99.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
- Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
- Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
- Microsoft Windows Server 2022 — versions 10.0.20348.0
- Microsoft Windows Server 2022, 23h2 Edition (Server Core Installation) — versions 10.0.25398.0
- Microsoft Windows Server 2025 — versions 10.0.26100.0
- Microsoft Windows Server 2025 (Server Core Installation) — versions 10.0.26100.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Windows SMB Denial of Service Vulnerability (vendor-advisory)
Frequently asked questions
- What is CVE-2024-43642?
- CVE-2024-43642 is a high-severity vulnerability in Microsoft Windows 11 Version 22h2, classified under Use After Free. CVSS score: 7.5/10. Published 2024-11-12.
- How severe is CVE-2024-43642?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-43642 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.