Memory leak in Cisco IOS 12.4, 15.0, and 15.1, Cisco IOS XE 2.5.x through 3.2.x, and Cisco Unified Communications Manager (CUCM) 6.x and 7.x before 7.1(5b)su4, 8.x before 8.5(1)su2, and 8.6 before 8.6(1) allows remote attackers to cause a denial of service (memory consumption and device reload or process failure) via a malformed SIP message, aka Bug IDs CSCtl86047 and CSCto88686.
2011-10-03T23:55:03.453
2025-04-11T00:51:21.963
Deferred
CVSSv2: 7.8 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios | 12.4 | Yes |
| Operating System | cisco | ios | 15.0 | Yes |
| Operating System | cisco | ios | 15.1 | Yes |
| Operating System | cisco | ios_xe | 2.5.0 | Yes |
| Operating System | cisco | ios_xe | 2.5.1 | Yes |
| Operating System | cisco | ios_xe | 2.5.2 | Yes |
| Operating System | cisco | ios_xe | 2.6.0 | Yes |
| Operating System | cisco | ios_xe | 2.6.1 | Yes |
| Operating System | cisco | ios_xe | 2.6.2 | Yes |
| Operating System | cisco | ios_xe | 3.1.0s | Yes |
| Operating System | cisco | ios_xe | 3.1.1s | Yes |
| Operating System | cisco | ios_xe | 3.1.2s | Yes |
| Operating System | cisco | ios_xe | 3.1.3s | Yes |
| Operating System | cisco | ios_xe | 3.1.4s | Yes |
| Operating System | cisco | ios_xe | 3.2.0s | Yes |
| Operating System | cisco | ios_xe | 3.2.1s | Yes |
| Operating System | cisco | ios_xe | 3.2.2s | Yes |
| Application | cisco | unified_communications_manager | 6.0 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(1\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(1a\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(1b\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(2\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(2\)su1 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(2\)su1a | Yes |
| Application | cisco | unified_communications_manager | 6.1\(3\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(3a\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(3b\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(3b\)su1 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(4\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(4\)su1 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(4a\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(4a\)su2 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(5\) | Yes |
| Application | cisco | unified_communications_manager | 6.1\(5\)su1 | Yes |
| Application | cisco | unified_communications_manager | 6.1\(5\)su2 | Yes |
| Application | cisco | unified_communications_manager | 7.0\(1\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.0\(1\)su1a | Yes |
| Application | cisco | unified_communications_manager | 7.0\(2\) | Yes |
| Application | cisco | unified_communications_manager | 7.0\(2a\) | Yes |
| Application | cisco | unified_communications_manager | 7.0\(2a\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.0\(2a\)su2 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(2a\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(2a\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(2b\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(2b\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3a\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3a\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3a\)su1a | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3b\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3b\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(3b\)su2 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5\)su1a | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5a\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5b\) | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5b\)su1 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5b\)su1a | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5b\)su2 | Yes |
| Application | cisco | unified_communications_manager | 7.1\(5b\)su3 | Yes |
| Application | cisco | unified_communications_manager | 8.0\(1\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(2\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(2a\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(2b\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(2c\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(2c\)su1 | Yes |
| Application | cisco | unified_communications_manager | 8.0\(3\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(3a\) | Yes |
| Application | cisco | unified_communications_manager | 8.0\(3a\)su1 | Yes |
| Application | cisco | unified_communications_manager | 8.0\(3a\)su2 | Yes |
| Application | cisco | unified_communications_manager | 8.5\(1\) | Yes |
| Application | cisco | unified_communications_manager | 8.5\(1\)su1 | Yes |
| Application | cisco | unified_communications_manager | 8.6 | Yes |