{"id":"CVE-2011-4019","aliases":["EUVD-2011-3972","GHSA-hc4w-748f-rggp"],"status":"published","title":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager ...","description":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.","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":0.01114,"percentile":0.66259,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2012-05-03T10:00:00Z","modified":"2026-06-16T23:34:18Z","products":[{"vendor":"cisco","product":"ios"},{"vendor":"cisco","product":"unified_communications_manager"}],"references":[{"url":"http://www.cisco.com/web/software/282074295/90289/cucm-readme-715bsu5.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151TCAVS.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4019"},{"url":"https://github.com/advisories/GHSA-hc4w-748f-rggp"}],"sources":{"cve":[{"id":"CVE-2011-4019","description":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.","status":"published","published":"2012-05-03T10:00:00Z","modified":"2024-09-16T22:36:25.358Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-3972","description":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.","status":"published","published":"2012-05-03T10:00:00Z","modified":"2024-09-16T22:36:25Z","updated_at":"2026-11-03T00:55:01.59966Z"}],"ghsa":[{"id":"GHSA-hc4w-748f-rggp","title":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager ...","description":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.","status":"published","published":"2022-05-17T05:28:57Z","modified":"2023-01-28T05:03:54Z","updated_at":"2026-11-02T14:44:04.026586Z"}],"nvd":[{"id":"CVE-2011-4019","description":"Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.","status":"published","published":"2012-05-03T10:11:39.53Z","modified":"2026-06-16T23:34:18.193Z","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-399"],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}