Vulnerability in Microsoft Windows 11 22h2
CVE-2025-26651
Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.025 · change: +0.002
Affected products
- Microsoft Windows 11 22h2
- Microsoft Windows 11 23h2
- Microsoft Windows 11 24h2
- 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
- Microsoft Windows Server 2022 23h2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Windows Local Session Manager (LSM) Denial of Service Vulnerability (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-26651?
- CVE-2025-26651 is a medium-severity vulnerability in Microsoft Windows 11 22h2, classified under CWE-749. CVSS score: 6.5/10. Published 2025-04-08.
- How severe is CVE-2025-26651?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-26651 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.