---
id: "CVE-2008-4250"
kind: "vulnerability"
aliases: ["CVE-2008-4250"]
title: "The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1,\u2026"
severity: "critical"
cvss: 10.0
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Microsoft Windows", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 2000", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2003", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2008", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows vista", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows xp", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "rpc", "smb", "windows", "windows-server"]
not_affected_if: ["patched-systems"]
published_at: "2008-10-23T22:00:01+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2008-4250", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-4250", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1,…

A buffer overflow in the Windows Server Service lets a remote attacker run arbitrary code by sending a crafted RPC request that overflows during path canonicalization. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft Windows affected ? fixed ?
- vendor:microsoft windows 2000 affected ? fixed ?
- vendor:microsoft windows server 2003 affected ? fixed ?
- vendor:microsoft windows server 2008 affected ? fixed ?
- vendor:microsoft windows vista affected ? fixed ?
- vendor:microsoft windows xp affected ? fixed ?

## Fix

Apply the Microsoft patch for CVE-2008-4250 (MS08-067) or follow the vendor mitigations; if neither is possible, discontinue use of the affected Windows system per CISA guidance.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2008-4250
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2008-4250

## From the sources

Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.

CISA 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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_