CVE-2014-0253 (GCVE-0-2014-0253)

Vulnerability from cvelistv5 – Published: 2014-02-12 02:00 – Updated: 2024-08-06 09:13
VLAI KEVIntel
Summary
Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.securitytracker.com/id/1029745 vdb-entryx_refsource_SECTRACK
http://osvdb.org/103162 vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/65415 vdb-entryx_refsource_BID
http://secunia.com/advisories/56793 third-party-advisoryx_refsource_SECUNIA
https://docs.microsoft.com/en-us/security-updates… vendor-advisoryx_refsource_MS
Date Public
2014-02-11 00:00
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 008888a3-ea08-44b9-9b13-e7a7044f4111

Vulnerability ID: CVE-2014-0253

Status: Confirmed

Status Updated: 2014-02-12 02:00 UTC

Exploited: Yes

Timestamps
First Seen: 2014-02-12
Asserted: 2014-02-12
Scope
Notes: KEVIntel entry: Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote... | Affected: Microsoft / .NET Framework | CVSS: 5.0 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote...
Vendor Microsoft
Product .NET Framework
Added Date 2014-02-12T02:00:00.000Z
Cvss Score 5.0
Epss Score None
Cvss Severity MEDIUM
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 16:45 UTC | Updated: 2026-06-19 16:45 UTC
Show details on NVD website
To clipboard 

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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.