{"id":"CVE-2011-2560","aliases":["EUVD-2011-2543","GHSA-gg52-3mfc-r5cw"],"status":"published","title":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly...","description":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01763,"percentile":0.78185,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2011-08-29T15:00:00Z","modified":"2026-06-16T23:31:34Z","products":[{"vendor":"cisco","product":"unified_communications_manager"}],"references":[{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b8f531.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2560"},{"url":"https://github.com/advisories/GHSA-gg52-3mfc-r5cw"}],"sources":{"cve":[{"id":"CVE-2011-2560","description":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.","status":"published","published":"2011-08-29T15:00:00Z","modified":"2024-09-17T04:19:34.235Z","updated_at":"2026-11-02T14:35:36.603688Z"}],"euvd":[{"id":"EUVD-2011-2543","description":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.","status":"published","published":"2011-08-29T15:00:00Z","modified":"2024-09-17T04:19:34Z","updated_at":"2026-11-03T00:28:23.906788Z"}],"ghsa":[{"id":"GHSA-gg52-3mfc-r5cw","title":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly...","description":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.","status":"published","published":"2022-05-17T05:28:35Z","modified":"2023-01-28T05:04:05Z","updated_at":"2026-11-02T14:44:06.354686Z"}],"nvd":[{"id":"CVE-2011-2560","description":"The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.","status":"published","published":"2011-08-29T15:55:01.19Z","modified":"2026-06-16T23:31:34.887Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:09.988332Z"}]}}