CVE-2011-3414
The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
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."
Timeline
ID reserved
By microsoft
- 4 months later
· 4 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 57.7% · top 0.9% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (7)
- oval:org.mitre.oval:def:14588 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.nruns.com/_downloads/advisory28122011.pdf (opens in a new tab)x_refsource_MISCx_transferred
- TA11-347A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- MS11-100 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- VU#903934 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20111228 n.runs-SA-2011.004 - web programming languages and platforms - DoS through hash table (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.ocert.org/advisories/ocert-2011-003.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-3414)Record last updated .