Unscored severity · published Aug 22, 2013
CVE-2013-3453
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…
–
CVSS
1.9%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Unified Communications Manager · Cisco
through 8.6\(4\); 3.3(5); 3.3(5)sr1; 3.3(5)sr2a; 4.1(3); 4.1(3)sr1; +34 more · source: NVD
UP
Unified Presence · Cisco
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-3453
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-3453
Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cup
More from Unified Communications Manager
9.8
CVE-2026-20045
Cisco Unified Communications Products Remote Code Execution Vulnerability
8.6
CVE-2026-20230
Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability
10.0
CVE-2025-20309
Cisco Unified Communications Manager Static SSH Credentials Vulnerability
10.0
CVE-2024-20253
A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an…
9.8
CVE-2017-12337
A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System software platform could allow an unauthenticated, remote…