CVE-2009-2505
The Internet Authentication Service (IAS) in Microsoft Windows Vista SP2 and Server 2008 SP2 does not properly validate MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication requests, which allows remote attackers to execute arbitrary code via crafted structures in a malformed request, aka "Internet Authentication Service Memory Corruption Vulnerability."
- EPSS
- 32% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:windows_server_2008
- microsoft:windows_vista
References
- http://www.securitytracker.com/id?1023291
- http://www.us-cert.gov/cas/techalerts/TA09-342A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-071
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6063
- http://www.securitytracker.com/id?1023291