ExploitedIn CISA KEVFix available

CVE-2008-4250

Exploitation confirmed. First attested on 2008-10-23 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2008-10-23
WeaknessCWE-119 · CWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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."

Timeline

dates in UTC

2008-10-2321:00Listed as exploited by GCVEGCVE
2008-10-2321:00Exploitation first reportedGCVE
2008-10-2322:00CVE publishedNVD
2026-05-20Added to the CISA KEV catalogCISA KEV
2026-05-2017:22SSVC exploitation set to activeCISA-ADP
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2008-4250?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2008-4250?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft windows 2000

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Microsoft windows server 2003

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Microsoft windows server 2008

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSMA-17-215-01 CISA1 known affected
ICSMA-17-215-01_Siemens Molecular Imaging Vulnerabilities
Siemens SPECT Workplaces/Symbia.net: All Windows XP-based versions

Full record on NVD

Fix

CISA’s 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.due 2026-06-03
Mitigation from the vendor CISA ICSMA-17-215-01 · 4 productsIn addition, Siemens recommends:

Advisories and patches

secunia.comPatch · Vendor Advisory
www.securityfocus.comPatch
www.vupen.comVendor Advisory
docs.microsoft.comPatch · Vendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 4 repositories, unverifiedthunderstrike9090/Conflicker_analysis_scriptsNoTrustedx/Exploit_MS08-067BinRacer/ms08-067.pyBinRacer/ms08-067

CISA Known Exploited Vulnerability

Date Added: 2026-05-20
Patch Due Date: 2026-06-03
Ransomware Use: Unknown
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.

Sources

CISA KEVKEV entry2026-05-20
GCVEexploitation2008-10-23
CISA-ADPSSVC decisionactive2026-05-20
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.19.82026-05-20
NVDCVSS 2.010read 2026-10-23
CISA-ADPweakness (CWE)CWE-1192026-05-20
NVDweakness (CWE)CWE-94read 2026-10-23
FIRST EPSSEPSS score98.8 %read 2026-10-23
PoC-in-GitHubproof of concept4read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2008-10-23
Last Modified: 2026-06-16
NVD status: Analyzed

Frequently asked questions

What is CVE-2008-4250?

Is CVE-2008-4250 actively exploited?

Yes. CVE-2008-4250 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-06-03.

What is the CVSS score for CVE-2008-4250?

CVE-2008-4250 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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