CVEvulnerability

CVE-2009-2505

10.0 HIGH Published 2009-12-09 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-12-09
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-287

Description

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."

Affected configurations

• microsoft windows server 2008 • microsoft windows server 2008 sp2 • microsoft windows vista

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References