{"id":"CVE-2011-2072","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-2072","generatedAt":"2026-10-27T23:18:48.342Z","title":"Memory leak in Cisco IOS 12.4, 15.0, and 15.1, Cisco IOS XE 2.5.x through 3.2.x, and Cisco Unified Communications Manager (CUCM) 6.x and 7.x before 7.1(5b)su4, 8.x before 8.5(1)su2, and 8.6 before 8.6(1) allows remote attackers to cause a denial of…","description":"Memory leak in Cisco IOS 12.4, 15.0, and 15.1, Cisco IOS XE 2.5.x through 3.2.x, and Cisco Unified Communications Manager (CUCM) 6.x and 7.x before 7.1(5b)su4, 8.x before 8.5(1)su2, and 8.6 before 8.6(1) allows remote attackers to cause a denial of service (memory consumption and device reload or process failure) via a malformed SIP message, aka Bug IDs CSCtl86047 and CSCto88686.","published":"2011-10-03T23:55:03.000Z","lastModified":"2026-06-16T23:30:39.000Z","status":"Modified","sourceIdentifier":"psirt@cisco.com","cvss":{"version":"2.0","score":7.8,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C"},"cwe":["CWE-399"],"affected":["cisco/ios","cisco/ios xe","cisco/unified communications manager"],"epss":{"score":0.01702,"percentile":0.77077,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-cucm","source":"psirt@cisco.com"},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=24129","source":"psirt@cisco.com"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d58.shtml","tags":["Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d5a.shtml","tags":["Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"http://www.securitytracker.com/id?1026110","source":"psirt@cisco.com"},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-cucm","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=24129","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d58.shtml","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d5a.shtml","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026110","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-2072","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}