CVE-2025-48802 json
Windows SMB Server Spoofing Vulnerability
published 2025-07-08 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-20601
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Patch / fix
- Microsoft Windows 11 version 22H2 10.0.22621.5624
- Microsoft Windows 11 version 22H3 10.0.22631.5624
- Microsoft Windows 11 Version 23H2 10.0.22631.5624
- Microsoft Windows Server 2022 10.0.20348.3932
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1732
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 16 mo ago
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Affected products
- Microsoft Windows 11 version 22H2
- Microsoft Windows 11 version 22H3
- Microsoft Windows 11 Version 23H2
- Microsoft Windows Server 2022
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-48802
vendor-advisory, patch
Sources
- CVE List CVE-2025-48802
- NVD CVE-2025-48802
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