CVE-2011-2072

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-03 · updated 2026-06-16
Weakness: CWE-399

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.

Affected products

Cisco IOS: 12.4, 15.0, 15.1
Cisco IOS XE: 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2 (+8)
Cisco Unified Communications Manager: 6.0, 6.1(1), 6.1(1a), 6.1(1b), 6.1(2), 6.1(2)su1 (+51)

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-cucm
http://tools.cisco.com/security/center/viewAlert.x?alertId=24129
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d58.shtml
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d5a.shtml
http://www.securitytracker.com/id?1026110
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-cucm
http://tools.cisco.com/security/center/viewAlert.x?alertId=24129
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d58.shtml
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d5a.shtml
http://www.securitytracker.com/id?1026110

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