Cyber Resilience

CVE-2025-48802

Medium

Published: 08 July 2025

Published
08 July 2025
Modified
15 July 2025
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0093 76.6th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-48802 is a medium-severity Improper Certificate Validation (CWE-295) vulnerability in Microsoft Windows 11 22H2. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 23.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.

CWE(s)
CWE-295

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 11 22h2
≤ 10.0.22621.5624
microsoft
windows 11 23h2
≤ 10.0.22631.5624
microsoft
windows server 2022
≤ 10.0.20348.3932
microsoft
windows server 2022 23h2
≤ 10.0.25398.1732

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SA-19 Component Authenticity
addresses: CWE-295

When certificates are used to establish component provenance, the control requires correct certificate validation procedures.

SC-17 Public Key Infrastructure Certificates
addresses: CWE-295

Mandates approved trust anchors and issuance policies, directly preventing acceptance of unvalidated or untrusted certificates.

SC-45 System Time Synchronization
addresses: CWE-295

Correct system time is required for proper enforcement of certificate notBefore/notAfter dates and time-based revocation checks.

References