CVE-2011-2561 describes a denial-of-service vulnerability in Cisco Unified Communications Manager (CUCM) versions 7.x before 7.1(5b)su4 and 8.x before 8.0(1). The flaw resides in the SIP process's handling of SDP data, specifically when the g729ar8 codec is used with a Media Termination Point (MTP), allowing remote attackers to trigger a service outage via a crafted call. With a CVSS score of 7.1 (High), this vulnerability is remotely exploitable with medium attack complexity, leading to a complete loss of availability for the affected system. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
7.0\(1\)su1CPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1:*:*:*:*:*:*:* | ||
7.0\(1\)su1aCPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1a:*:*:*:*:*:*:* | ||
7.0\(2\)CPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager:7.0\(2\):*:*:*:*:*:*:* | ||
7.0\(2a\)CPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\):*:*:*:*:*:*:* | ||
7.0\(2a\)su1CPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:C
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.