{"id":"CVE-2011-2586","aliases":["EUVD-2011-2569","GHSA-4444-267r-x82x"],"status":"published","title":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a...","description":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.","severity":{"version":"2.0","score":5.4,"vector":"AV:N/AC:H/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01189,"percentile":0.68141,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2012-05-02T10:00:00Z","modified":"2026-06-16T23:31:36Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=24436","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id?1027005","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2586"},{"url":"https://github.com/advisories/GHSA-4444-267r-x82x"}],"sources":{"cve":[{"id":"CVE-2011-2586","description":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.","status":"published","published":"2012-05-02T10:00:00Z","modified":"2024-08-06T23:08:23Z","updated_at":"2026-11-02T14:35:36.603688Z"}],"euvd":[{"id":"EUVD-2011-2569","description":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.","status":"published","published":"2012-05-02T10:00:00Z","modified":"2024-08-06T23:08:23Z","updated_at":"2026-11-03T01:39:55.11051Z"}],"ghsa":[{"id":"GHSA-4444-267r-x82x","title":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a...","description":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.","status":"published","published":"2022-05-17T05:19:49Z","modified":"2023-01-28T05:03:56Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:04.493027Z"}],"nvd":[{"id":"CVE-2011-2586","description":"The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.","status":"published","published":"2012-05-02T10:09:21.237Z","modified":"2026-06-16T23:31:36.143Z","cvss":[{"version":"2.0","score":5.4,"vector":"AV:N/AC:H/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}