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CVE-2008-4250

Microsoft Windows Buffer Overflow Vulnerability

  • Critical 9.8
  • Exploited: added to CISA KEV 20 May 2026
  • A public exploit reference is listed

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."

Key facts

Published
23 Oct 2008
Last changed
21 May 2026
Assigned by
microsoft
KEV added
20 May 2026
KEV fix due
3 Jun 2026
EPSS
98.751% likely to be exploited in the next 30 days, higher than 99.926% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.8CVSS 3.1, Criticalfrom CISA (ADP container)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • 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 KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/an/a
  • n/a (affected)

Timeline

  1. 23 Oct 2008 Published
  2. 20 May 2026 CVE-2008-4250 added to CISA KEV
  3. 20 May 2026 Added to the CISA KEV catalogue

Weakness

References