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CVE-2009-0086

HIGH · CVSS 10.0EPSS 14.1%EU EUVD

Integer underflow in Windows HTTP Services (aka WinHTTP) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote HTTP servers to execute arbitrary code via crafted parameter values in a response, related to error handling, aka "Windows HTTP Services Integer Underflow Vulnerability."

Key facts

CVSS score
10.0 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-189
EPSS score
14.1% (97th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-0095)
Published
April 15, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0095 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • microsoft / windows 2000
  • microsoft / windows server 2003
  • microsoft / windows server 2003
  • microsoft / windows server 2003
  • microsoft / windows server 2003
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows vista
  • microsoft / windows vista
  • microsoft / windows vista
  • microsoft / windows vista
  • microsoft / windows xp
  • microsoft / windows xp

Certified products that may be affected

21 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

See all 21 in the Security Certifications Explorer.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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