High (7.5) in microsoft. EPSS 40% chance of exploitation in the next 30 days.
The Negotiate Security Software Provider (SSP) interface in Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service (crash from null dereference) or execute arbitrary code via a crafted SPNEGO NegTokenInit request during authentication protocol selection.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
40% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)