{"id":"CVE-2011-4016","aliases":["EUVD-2011-3969","GHSA-rf3j-84v2-5387"],"status":"published","title":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination...","description":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.","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":0.01321,"percentile":0.71073,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-284"],"published":"2012-05-02T10:00:00Z","modified":"2026-06-16T23:34:18Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id?1027005","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4016"},{"url":"https://github.com/advisories/GHSA-rf3j-84v2-5387"}],"sources":{"cve":[{"id":"CVE-2011-4016","description":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.","status":"published","published":"2012-05-02T10:00:00Z","modified":"2024-08-06T23:53:32.612Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-3969","description":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.","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-rf3j-84v2-5387","title":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination...","description":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.","status":"published","published":"2022-05-17T03:28:23Z","modified":"2023-01-27T05:07:56Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:13.39976Z"}],"nvd":[{"id":"CVE-2011-4016","description":"The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.","status":"published","published":"2012-05-02T10:09:21.817Z","modified":"2026-06-16T23:34:18.093Z","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","CWE-284"],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}