Vulnerability in Microsoft Windows 11 22h2
CVE-2025-48802
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Vulnerability class: Improper Certificate Validation
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:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.001
Affected products
- Microsoft Windows 11 22h2
- Microsoft Windows 11 23h2
- 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 Server 2022 — versions 10.0.20348.0
- Microsoft Windows Server 2022
- Microsoft Windows Server 2022 23h2
- Microsoft Windows Server 2022, 23h2 Edition (Server Core Installation) — versions 10.0.25398.0
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-48802?
- CVE-2025-48802 is a medium-severity vulnerability in Microsoft Windows 11 22h2, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2025-07-08.
- How severe is CVE-2025-48802?
- Medium severity. CVSS v3 base score is 6.5 out of 10.