Risk Letters

Exploited vulnerability

CVE-2008-4250

TLP:CLEAR

Microsoft Windows Buffer Overflow Vulnerability

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.

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 98.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 20 May 2026
  • First known exploitation: 20 May 2026
  • CISA's deadline for US federal agencies: 3 June 2026
  • Weakness: CWE-94
  • First seen by Risk Letters: 20 May 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD