Vulnerability Report

CVE-2011-3414

Title: Microsoft Windows Server 2008 Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2011-3414.

CWE Category CWE-399

Published Date Dec 30, 2011

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 7.8 CVSS v2.0

Exploit Probability (EPSS)

58.89%

Vulnerability Summary

CVE-2011-3414: The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability."

Impacted Vendors

microsoft 5

Reference Links

http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html http://www.kb.cert.org/vuls/id/903934 http://www.nruns.com/_downloads/advisory28122011.pdf http://www.ocert.org/advisories/ocert-2011-003.html http://www.us-cert.gov/cas/techalerts/TA11-347A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588 http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html http://www.kb.cert.org/vuls/id/903934 http://www.nruns.com/_downloads/advisory28122011.pdf http://www.ocert.org/advisories/ocert-2011-003.html http://www.us-cert.gov/cas/techalerts/TA11-347A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2011-3414 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

December 30, 2011 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected Stack

No specific products linked.