CVE-2009-3675: Microsoft Windows 2000

Medium severity, CVSS 6.8. EPSS: 24.7% chance of exploitation in the next 30 days.

LSASS.exe in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote authenticated users to cause a denial of service (CPU consumption) via a malformed ISAKMP request over IPsec, aka "Local Security Authority Subsystem Service Resource Exhaustion Vulnerability."

Affected products

• Microsoft Windows 2000: version sp4 only
• Microsoft Windows 2003 Server: any version; affected versions not specified
• Microsoft Windows XP: any version; affected versions not specified

Published 2009-12-09. Last modified 2026-06-16.