CVE-2008-4250: Windows Server Service Remote Code Execution
Summary
Stack-based overflow in the Server service in Microsoft Windows allows remote attackers to execute arbitrary code via crafted RPC requests (Conficker worm).
Why It Matters
CRITICAL severity — known to be exploited in the wild（CISA KEV）；action required: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. ；affects Microsoft Windows 2000, Windows XP, Windows Server 2003.
Current Status
- Vulnerability status: Known exploited (CISA KEV)
- Last intelligence update: 2026-10-27 · source: NVD
- CISA KEV added: 2026-05-20 · remediation deadline: 2026-06-03
Entity Activity Timeline
- 2026-05-20 — Added to CISA KEV as known-exploited · 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.
- 2008-10-23 — NVD publication / disclosure
- 2026-10-27 — Intelligence record updated（NVD sync）
Severity
CRITICAL
CVSS Score: 10
AV:N/AC:L/Au:N/C:C/I:C/A:C
Known Exploited (CISA KEV)
Known Exploited Vulnerability
Added: 2026-05-20 · Remediation deadline: 2026-06-03
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source Attribution
Source: NVD · Updated: 2026-10-27T00:00:00.000 · Confidence: high
Impact
Based on CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
- Microsoft Windows 2000 (Microsoft)
- Windows XP (Microsoft)
- Windows Server 2003 (Microsoft)
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
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