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HIGH · 7.8

CVE-2025-54895

Integer overflow or wraparound in Windows SPNEGO Extended Negotiation allows an authorized attacker to elevate privileges locally.

Vulnerability Description

Integer overflow or wraparound in Windows SPNEGO Extended Negotiation allows an authorized attacker to elevate privileges locally.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 10 1507< 10.0.10240.21128
MicrosoftWindows 10 1607< 10.0.14393.8422
MicrosoftWindows 10 1809< 10.0.17763.7792
MicrosoftWindows 10 21H2< 10.0.19044.6332
MicrosoftWindows 10 22H2< 10.0.19045.6332
MicrosoftWindows 11 22H2< 10.0.22621.5909
MicrosoftWindows 11 23H2< 10.0.22631.5909
MicrosoftWindows 11 24H2< 10.0.26100.6508
MicrosoftWindows Server 2008r2
MicrosoftWindows Server 2012-
MicrosoftWindows Server 2016< 10.0.14393.8422
MicrosoftWindows Server 2019< 10.0.17763.7792
MicrosoftWindows Server 2022< 10.0.20348.4106
MicrosoftWindows Server 2022 23H2< 10.0.25398.1849
MicrosoftWindows Server 2025< 10.0.26100.6508

Related Weaknesses (CWE)

CWE-367CWE-190

References

FAQ

What is CVE-2025-54895?

CVE-2025-54895 is a vulnerability with a CVSS score of 7.8 (HIGH). Integer overflow or wraparound in Windows SPNEGO Extended Negotiation allows an authorized attacker to elevate privileges locally.

How severe is CVE-2025-54895?

CVE-2025-54895 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-54895?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2.