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CVE-2025-47981

Severity
CRITICAL
CVSS
9.8
EPSS
0.25457
Risk score
48.11
CISA KEV
No
PoC
No
Published
2025-07-08
Modified
2026-02-13
First seen
2026-08-07
Aliases
EUVD-2025-20611, GHSA-75VH-4RGJ-M3J3
Products
Microsoft:Windows 10 Version 1507 10.0.10240.0 <10.0.10240.21073, Microsoft:Windows 10 Version 1607 10.0.14393.0 <10.0.14393.8246, Microsoft:Windows 10 Version 1809 10.0.17763.0 <10.0.17763.7558, Microsoft:Windows 10 Version 21H2 10.0.19044.0 <10.0.19044.6093, Microsoft:Windows 10 Version 22H2 10.0.19045.0 <10.0.19045.6093, Microsoft:Windows 11 Version 23H2 10.0.22631.0 <10.0.22631.5624, Microsoft:Windows 11 Version 24H2 10.0.26100.0 <10.0.26100.4652, Microsoft:Windows 11 version 22H2 10.0.22621.0 <10.0.22621.5624, Microsoft:Windows 11 version 22H3 10.0.22631.0 <10.0.22631.5624, Microsoft:Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 <6.1.7601.27820, Microsoft:Windows Server 2008 R2 Service Pack 1 6.1.7601.0 <6.1.7601.27820, Microsoft:Windows Server 2012 (Server Core installation) 6.2.9200.0 <6.2.9200.25573, Microsoft:Windows Server 2012 6.2.9200.0 <6.2.9200.25573, Microsoft:Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 <6.3.9600.22676, Microsoft:Windows Server 2012 R2 6.3.9600.0 <6.3.9600.22676, Microsoft:Windows Server 2016 (Server Core installation) 10.0.14393.0 <10.0.14393.8246, Microsoft:Windows Server 2016 10.0.14393.0 <10.0.14393.8246, Microsoft:Windows Server 2019 (Server Core installation) 10.0.17763.0 <10.0.17763.7558, Microsoft:Windows Server 2019 10.0.17763.0 <10.0.17763.7558, Microsoft:Windows Server 2022 10.0.20348.0 <10.0.20348.3932, Microsoft:Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 <10.0.25398.1732, Microsoft:Windows Server 2025 (Server Core installation) 10.0.26100.0 <10.0.26100.4652, Microsoft:Windows Server 2025 10.0.26100.0 <10.0.26100.4652
Sources
euvd EUVD-2025-20611

Description

Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.

References