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CVE-2009-2505

UnknownEPSS 31.61%

Last modified

CVE-2009-2505 is a vulnerability of currently unknown severity. 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 estimates a 31.61% chance of exploitation in the next 30 days.

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."

Metrics

EPSS Probability
31.61%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows Server 2008All versionsSp2
MicrosoftWindows Server 2008sp2X32
MicrosoftWindows VistaAll versionsSp2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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."
How severe is CVE-2009-2505?
Severity scoring for CVE-2009-2505 is pending analysis. The EPSS model estimates a 31.61% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2505?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2505?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST