How severe is CVE-2008-4250?

CVE-2008-4250 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2008-4250 being actively exploited?

Yes. CVE-2008-4250 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-05-20, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2008-4250?

CVE-2008-4250 primarily affects Microsoft Windows 2000. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4250?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2008-4250 have an EU (EUVD) identifier?

Yes. CVE-2008-4250 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2008-4233. It is also flagged as exploited in the EUVD (since 2026-05-20).

When was CVE-2008-4250 published?

CVE-2008-4250 was published on 2008-10-23 and last updated on 2026-06-16.

CVE-2008-4250

CVE-2008-4250 is a critical-severity vulnerability in Microsoft Windows 2000 with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-05-20). The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 99% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-05-20)
EU (EUVD) id: EUVD-2008-4233
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-05-20)
Weakness: CWE-94
Affected product: Microsoft Windows 2000
Published: 2008-10-23
Last modified: 2026-06-16

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."

Frequently asked questions

What is CVE-2008-4250?: 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."
How severe is CVE-2008-4250?: CVE-2008-4250 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2008-4250 being actively exploited?: Yes. CVE-2008-4250 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-05-20, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2008-4250?: CVE-2008-4250 primarily affects Microsoft Windows 2000. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-4250?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2008-4250 have an EU (EUVD) identifier?: Yes. CVE-2008-4250 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2008-4233. It is also flagged as exploited in the EUVD (since 2026-05-20).
When was CVE-2008-4250 published?: CVE-2008-4250 was published on 2008-10-23 and last updated on 2026-06-16.

References

Affected products (18)

cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp1:*:*:-:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x64:*
cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x86:*
cpe:2.3:o:microsoft:windows_vista:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:-:*:x64:*
cpe:2.3:o:microsoft:windows_xp:-:-:*:*:professional:*:x64:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*
cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

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