CVE-2025-47981 PUBLISHED

SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability

Assigner: microsoft
Reserved: 14.05.2025 Published: 08.07.2025 Updated: 25.07.2025

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

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS Score: 9.8

Product Status

Vendor Microsoft
Product Windows 10 Version 1809
Versions
  • affected from 10.0.17763.0 to 10.0.17763.7558 (excl.)
Vendor Microsoft
Product Windows Server 2019
Versions
  • affected from 10.0.17763.0 to 10.0.17763.7558 (excl.)
Vendor Microsoft
Product Windows Server 2019 (Server Core installation)
Versions
  • affected from 10.0.17763.0 to 10.0.17763.7558 (excl.)
Vendor Microsoft
Product Windows Server 2022
Versions
  • affected from 10.0.20348.0 to 10.0.20348.3932 (excl.)
Vendor Microsoft
Product Windows 10 Version 21H2
Versions
  • affected from 10.0.19044.0 to 10.0.19044.6093 (excl.)
Vendor Microsoft
Product Windows 11 version 22H2
Versions
  • affected from 10.0.22621.0 to 10.0.22621.5624 (excl.)
Vendor Microsoft
Product Windows 10 Version 22H2
Versions
  • affected from 10.0.19045.0 to 10.0.19045.6093 (excl.)
Vendor Microsoft
Product Windows Server 2025 (Server Core installation)
Versions
  • affected from 10.0.26100.0 to 10.0.26100.4652 (excl.)
Vendor Microsoft
Product Windows 11 version 22H3
Versions
  • affected from 10.0.22631.0 to 10.0.22631.5624 (excl.)
Vendor Microsoft
Product Windows 11 Version 23H2
Versions
  • affected from 10.0.22631.0 to 10.0.22631.5624 (excl.)
Vendor Microsoft
Product Windows Server 2022, 23H2 Edition (Server Core installation)
Versions
  • affected from 10.0.25398.0 to 10.0.25398.1732 (excl.)
Vendor Microsoft
Product Windows 11 Version 24H2
Versions
  • affected from 10.0.26100.0 to 10.0.26100.4652 (excl.)
Vendor Microsoft
Product Windows Server 2025
Versions
  • affected from 10.0.26100.0 to 10.0.26100.4652 (excl.)
Vendor Microsoft
Product Windows 10 Version 1507
Versions
  • affected from 10.0.10240.0 to 10.0.10240.21073 (excl.)
Vendor Microsoft
Product Windows 10 Version 1607
Versions
  • affected from 10.0.14393.0 to 10.0.14393.8246 (excl.)
Vendor Microsoft
Product Windows Server 2016
Versions
  • affected from 10.0.14393.0 to 10.0.14393.8246 (excl.)
Vendor Microsoft
Product Windows Server 2016 (Server Core installation)
Versions
  • affected from 10.0.14393.0 to 10.0.14393.8246 (excl.)
Vendor Microsoft
Product Windows Server 2008 R2 Service Pack 1
Versions
  • affected from 6.1.7601.0 to 6.1.7601.27820 (excl.)
Vendor Microsoft
Product Windows Server 2008 R2 Service Pack 1 (Server Core installation)
Versions
  • affected from 6.1.7601.0 to 6.1.7601.27820 (excl.)
Vendor Microsoft
Product Windows Server 2012
Versions
  • affected from 6.2.9200.0 to 6.2.9200.25573 (excl.)
Vendor Microsoft
Product Windows Server 2012 (Server Core installation)
Versions
  • affected from 6.2.9200.0 to 6.2.9200.25573 (excl.)
Vendor Microsoft
Product Windows Server 2012 R2
Versions
  • affected from 6.3.9600.0 to 6.3.9600.22676 (excl.)
Vendor Microsoft
Product Windows Server 2012 R2 (Server Core installation)
Versions
  • affected from 6.3.9600.0 to 6.3.9600.22676 (excl.)

References

Problem Types