Known exploited vulnerability
CVE-2008-4250
The short answer
CVE-2008-4250 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-05-20: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
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."
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since May 20, 2026
Federal due date Jun 3, 2026
EPSS, next 30 days
99%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says 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.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-067 PatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/46040 Third Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6093 Broken LinkThird Party Advisory
- www.exploit-db.com/exploits/6824 ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/6841 ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/7104 ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/7132 ExploitThird Party AdvisoryVDB Entry
- docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-067 PatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/46040 Third Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6093 Broken LinkThird Party Advisory
- www.exploit-db.com/exploits/6824 ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/6841 ExploitThird Party AdvisoryVDB Entry
Questions
Is CVE-2008-4250 being exploited?
Yes. CISA added CVE-2008-4250 to its Known Exploited Vulnerabilities catalog on 2026-05-20, with a federal remediation due date of 2026-06-03.
How do I fix CVE-2008-4250?
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.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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