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critical9.8Known exploitedPublic exploit code

CVE-2008-4250

Microsoft Windows Buffer Overflow Vulnerability

Exploited in the wild

This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-05-20. Federal due date: 2026-06-03.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.

Affected products

VendorProductAffected versions
MicrosoftWindows 2000
All versions
MicrosoftWindows Server 2003
All versions
MicrosoftWindows Server 2008
All versions
MicrosoftWindows Vista
All versions
MicrosoftWindows Xp
All versions

Weakness classification

References