CVE-2025-47981

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

• microsoft windows 10 1507 (< 10.0.10240.21073) • microsoft windows 10 1607 (< 10.0.14393.8246) • microsoft windows 10 1809 (< 10.0.17763.7558) • microsoft windows 10 21h2 (< 10.0.19044.6093) • microsoft windows 10 22h2 (< 10.0.19045.6093) • microsoft windows 11 22h2 (< 10.0.22621.5624) • microsoft windows 11 23h2 (< 10.0.22631.5624) • microsoft windows 11 24h2 (< 10.0.26100.4652) • microsoft windows server 2008 r2 • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 (< 10.0.14393.8246) • microsoft windows server 2019 (< 10.0.17763.7558) • microsoft windows server 2022 (< 10.0.20348.3932) • microsoft windows server 2022 23h2 (< 10.0.25398.1732) • microsoft windows server 2025 (< 10.0.26100.4652)