CVE-2013-3453

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-08-22 · updated 2026-06-16
Weakness: CWE-399

Description

Memory leak in Cisco Unified Communications Manager IM and Presence Service before 8.6(5)SU1 and 9.x before 9.1(2), and Cisco Unified Presence, allows remote attackers to cause a denial of service (memory and CPU consumption) by making many TCP connections to port (1) 5060 or (2) 5061, aka Bug ID CSCud84959.

Affected products

Cisco Unified Communications Manager: through 8.6\(4\); 3.3(5), 3.3(5)sr1, 3.3(5)sr2a, 4.1(3), 4.1(3)sr1, 4.1(3)sr2 (+107)
Cisco Unified Presence: all versions

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cup
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cup

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