Buffer overflow in Microsoft Windows 10 Version 1507
CVE-2025-47981
Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
Vulnerability class: Buffer Overflow
EPSS: 0.030 (86.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). 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.
Affected products
- Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
- Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
- Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
- Microsoft Windows Server 2008 R2 Service Pack 1 — versions 6.1.7601.0
Weakness classification (CWE)
References
- SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2025-47981?
- CVE-2025-47981 is a critical-severity vulnerability in Microsoft Windows 10 Version 1507, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-07-08.
- How severe is CVE-2025-47981?
- Critical severity. CVSS v3 base score is 9.8 out of 10.