{"id":"CVE-2011-4007","aliases":["EUVD-2011-3960","GHSA-wpxw-h4r4-3xjx"],"status":"published","title":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental...","description":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental imposition\" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.","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":"2026-06-16T23:34:17Z","products":[{"vendor":"cisco","product":"ios"},{"vendor":"cisco","product":"ios_xe"}],"references":[{"url":"http://www.cisco.com/en/US/docs/ios/ios_xe/3/release/notes/asr1k_caveats_33s.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securitytracker.com/id?1027005","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4007"},{"url":"https://github.com/advisories/GHSA-wpxw-h4r4-3xjx"}],"sources":{"cve":[{"id":"CVE-2011-4007","description":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental imposition\" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.","status":"published","published":"2012-05-02T10:00:00Z","modified":"2024-08-06T23:53:32.592Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-3960","description":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental imposition\" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.","status":"published","published":"2012-05-02T10:00:00Z","modified":"2024-08-06T23:53:32Z","updated_at":"2026-11-03T01:39:49.868954Z"}],"ghsa":[{"id":"GHSA-wpxw-h4r4-3xjx","title":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental...","description":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental imposition\" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.","status":"published","published":"2022-05-17T05:19:35Z","modified":"2023-01-28T05:03:55Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:04.493027Z"}],"nvd":[{"id":"CVE-2011-4007","description":"Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the \"set mpls experimental imposition\" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.","status":"published","published":"2012-05-02T10:09:21.66Z","modified":"2026-06-16T23:34:17.703Z","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"}]}}