CVE-2025-48802
published 2025-07-08CVE-2025-48802: Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
PriorityP338medium6.5CVSS 3.1
AVNACLPRLUINSUCNIHAN
EPSS
0.74%
49.9th percentile
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_11_22h2 | < 10.0.22621.5624 | 10.0.22621.5624 |
| microsoft | windows_11_23h2 | < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.5624 | 10.0.22621.5624 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_server_2022 | < 10.0.20348.3932 | 10.0.20348.3932 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.3932 | 10.0.20348.3932 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1732 | 10.0.25398.1732 |
| msrc | windows_11_version_22h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_22h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_23h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_23h2_for_x64-based_systems | — | — |
| msrc | windows_server_2022 | — | — |
| msrc | windows_server_2022_23h2_edition | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
vendor_msrc6.5MEDIUM
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Microsoft
Windows SMB Server Spoofing Vulnerability
vendor_msrc·2025-07-08·CVSS 6.5
CVE-2025-48802 [MEDIUM] CWE-295 Windows SMB Server Spoofing Vulnerability
Windows SMB Server Spoofing Vulnerability
Description: Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Windows SMB: Windows SMB
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Spoofing
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062572
Reference: https://support.microsoft.com/help/5062572
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062552
Reference: https://support.microsoft.com/help/5062552
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062570
Reference: https://support.microsoft.com/help/5062570
GHSA
GHSA-32c4-pxr5-p8gv: Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network
ghsa_unreviewed·2025-07-08
CVE-2025-48802 [MEDIUM] CWE-295 GHSA-32c4-pxr5-p8gv: Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-08
Published