CVE-2008-4250
CriticalActively exploited (CISA KEV)
Description
The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, Server 2008, and 7 Pre-Beta allows remote attackers to execute arbitrary code via a crafted RPC request that triggers the overflow during path canonicalization, as exploited in the wild by Gimmiv.A in October 2008, aka "Server Service Vulnerability."
SeverityCritical
CVSS9.8
Exploit probability100. percentile98.8%
Product
Microsoft Windows
PublishedOct 23, 2008
First seenOct 23, 2008
Added to KEVMay 20, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Jun 3, 2026Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_2000 | No range specified | — |
| microsoft windows_server_2003 | No range specified | — |
| microsoft windows_server_2008 | No range specified | — |
| microsoft windows_vista | No range specified | — |
| microsoft windows_xp | No range specified | — |
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