CVE-2013-1133

high

Published 2013-02-27 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

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

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

Vendor	Product	Versions
cisco	unified_communications_manager	`8.6`
cisco	unified_communications_manager	`8.6\(1\)`
cisco	unified_communications_manager	`8.6\(1a\)`
cisco	unified_communications_manager	`8.6\(2\)`
cisco	unified_communications_manager	`8.6\(2a\)`
cisco	unified_communications_manager	`8.6\(2a\)su1`
cisco	unified_communications_manager	`8.6\(4\)`
cisco	unified_communications_manager	`9.0\(1\)`

References

CWEs

CWE-20

Community-verified mitigations for this CVE will appear above when contributors publish them.

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