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Case File

CVE-2009-2505

HIGH · CVSS 10 EPSS 31.61%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-12-09 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2009-2505
Severity
HIGH
CVSS
10
EPSS
31.61%
Microsoft Windows

Original NVD 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."