VIR Vulnerability Intelligence Relay

CVE-2011-2560

high
Published 2011-08-29 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
7.8

Description

The Packet Capture Service in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x does not properly handle idle TCP connections, which allows remote attackers to cause a denial of service (memory consumption and restart) by making many connections, aka Bug ID CSCtf97162.

Predictions

Exploit likelihood
20%
Patch ETA
—

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
VendorProductVersionsFixed
cisco ciscounified_communications_manager4.1\(3\)
cisco ciscounified_communications_manager4.1\(3\)sr1
cisco ciscounified_communications_manager4.1\(3\)sr2
cisco ciscounified_communications_manager4.1\(3\)sr3
cisco ciscounified_communications_manager4.1\(3\)sr4
cisco ciscounified_communications_manager4.2
cisco ciscounified_communications_manager4.2.1
cisco ciscounified_communications_manager4.2.2
cisco ciscounified_communications_manager4.2.3
cisco ciscounified_communications_manager4.2.3sr1
cisco ciscounified_communications_manager4.2.3sr2
cisco ciscounified_communications_manager4.2.3sr2b
cisco ciscounified_communications_manager4.3
cisco ciscounified_communications_manager4.3\(1\)

References

CWEs

CWE-399

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

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