by Kastro
Paper/Archive/CVE-2025-47981

CVE-2025-47981

Microsoft Windows 10 Version 1507 — SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability

EPSS 41%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 98.7.987 × 2019.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
Windows 10 Version 150710.0.10240.0 – < 10.0.10240.2107310.0.10240.21073CNA
Windows 10 Version 160710.0.14393.0 – < 10.0.14393.824610.0.14393.8246CNA
Windows 10 Version 180910.0.17763.0 – < 10.0.17763.755810.0.17763.7558CNA
Windows 10 Version 21H210.0.19044.0 – < 10.0.19044.609310.0.19044.6093CNA
Windows 10 Version 22H210.0.19045.0 – < 10.0.19045.609310.0.19045.6093CNA
Windows 11 version 22H210.0.22621.0 – < 10.0.22621.562410.0.22621.5624CNA
Windows 11 version 22H310.0.22631.0 – < 10.0.22631.562410.0.22631.5624CNA
Windows 11 Version 23H210.0.22631.0 – < 10.0.22631.562410.0.22631.5624CNA
Windows 11 Version 24H210.0.26100.0 – < 10.0.26100.465210.0.26100.4652CNA
Windows Server 2008 R2 Service Pack 16.1.7601.0 – < 6.1.7601.278206.1.7601.27820CNA
Windows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 – < 6.1.7601.278206.1.7601.27820CNA
Windows Server 20126.2.9200.0 – < 6.2.9200.255736.2.9200.25573CNA

Scores by source

microsoft (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2025-47981refvicarius.io/vsociety/posts/cve-2025-47981-detection-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiationrefvicarius.io/vsociety/posts/cve-2025-47981-mitigation-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiation