CVE-2025-48802
Windows SMB Server Spoofing Vulnerability
MEDIUM
6.5
CVSS Score
Published: July 8, 2025 at 04:57 PM UTC
Updated: June 17, 2026 at 09:30 AM UTC
5 products affected across 1 vendorWindows Server 2022Windows 11 23H2Windows 11 22H2
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit
Description
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.22621.5624, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22631.5624, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.20348.3932, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.25398.1732, so it looks safe — our inference, not a vendor statement
10.0.25398.0 ≤ v < 10.0.25398.1732
Affected range stops below 10.0.25398.1732, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.5MEDIUMmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-295
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