CVE-2011-3414 in the critical feed json
The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1…
published 2011-12-30 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3377
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 57.7%
- EPSS 57.7% chance of exploitation in 30 days, percentile 99%
- public exploits
- 0
- none known
Summary
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."
Exploit prediction
57.69% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-100
vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588
vdb-entry, signature
- nruns.com /_downloads/advisory28122011.pdf
-
us-cert.gov
/cas/techalerts/TA11-347A.html
third-party-advisory, us-government-resource
-
kb.cert.org
/vuls/id/903934
third-party-advisory, us-government-resource
-
archives.neohapsis.com
/archives/bugtraq/2011-12/0181.html
mailing-list
- ocert.org /advisories/ocert-2011-003.html
Sources
- CVE List CVE-2011-3414
- NVD CVE-2011-3414
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.