CVE-2013-1133

high
Published 2013-02-27 · Modified 2026-04-29
CVSS v3
CVSS v2
7.8
VIR risk
7.8

Description

Cisco Unified Communications Manager (CUCM) 8.6 before 8.6(2a)su2, 8.6 BE3k before 8.6(4) BE3k, and 9.x before 9.0(1) allows remote attackers to cause a denial of service (CPU consumption and GUI and voice outages) via malformed packets to unused UDP ports, aka Bug ID CSCtx43337.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@cisco.com — http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130227-cucm

Application impact

VendorProductVersionsFixed
cisco ciscounified_communications_manager8.6
cisco ciscounified_communications_manager8.6\(1\)
cisco ciscounified_communications_manager8.6\(1a\)
cisco ciscounified_communications_manager8.6\(2\)
cisco ciscounified_communications_manager8.6\(2a\)
cisco ciscounified_communications_manager8.6\(2a\)su1
cisco ciscounified_communications_manager8.6\(4\)
cisco ciscounified_communications_manager9.0\(1\)

References

CWEs

CWE-20

Verify integrity in audit chain (admin only). AS-IS.