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Exploited Added to CISA's list May 20, 2026

Microsoft Windows: Buffer Overflow Vulnerability

What to do: Run Windows Update and restart the PC.

Affects
Microsoft Windows
Identifier
CVE-2008-4250
What it is
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.
Official guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
National Vulnerability Database entry

"Exploited" means CISA has evidence attackers are using this flaw. Being on the list does not mean your device was attacked; it means the update matters.