{"id":"CVE-2014-0253","aliases":["EUVD-2014-0291","GHSA-63vf-8cxj-r6hq"],"status":"published","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...","description":"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":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.38697,"percentile":0.9859,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2014-02-12T02:00:00Z","modified":"2026-06-17T00:02:38Z","products":[{"vendor":"microsoft","product":".net_framework"}],"references":[{"url":"http://www.securitytracker.com/id/1029745","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://osvdb.org/103162","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securityfocus.com/bid/65415","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://secunia.com/advisories/56793","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-009","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-0253"},{"url":"https://github.com/advisories/GHSA-63vf-8cxj-r6hq"}],"sources":{"cve":[{"id":"CVE-2014-0253","description":"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.\"","status":"published","published":"2014-02-12T02:00:00Z","modified":"2024-08-06T09:13:09.887Z","updated_at":"2026-11-02T14:33:47.330011Z"}],"euvd":[{"id":"EUVD-2014-0291","description":"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.\"","status":"published","published":"2014-02-12T02:00:00Z","modified":"2024-08-06T09:13:09Z","updated_at":"2026-11-03T01:57:22.035163Z"}],"ghsa":[{"id":"GHSA-63vf-8cxj-r6hq","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...","description":"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.\"","status":"published","published":"2022-05-14T02:33:00Z","modified":"2023-02-02T05:06:22Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:17.685441Z"}],"nvd":[{"id":"CVE-2014-0253","description":"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.\"","status":"published","published":"2014-02-12T04:50:39.937Z","modified":"2026-06-17T00:02:38.91Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:53.330367Z"}]}}