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CVE-2008-4250: Microsoft Windows Buffer Overflow Vulnerability

criticalknown exploitedpublic exploitCVE-2008-4250
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: Windows
What
Microsoft Windows contains a buffer overflow vulnerability that allows remote attackers to execute arbitrary code via a crafted RPC request.
Who is affected
Users of Microsoft Windows Server Service.
Urgency
Remediation is critical due to the potential for arbitrary code execution and active exploitation.
Action
Users should apply the latest security updates for Microsoft Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-05-20
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2008-4250

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2008-4250coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Buffer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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