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TI-2011-00823 Aliases CVE-2011-0941GHSA-4prw-wg9m-4gxq

Memory leak in Cisco Unified Communications Manager (CUCM) 6.x before 6.1(5)su2, 7.x…

Priority LOW 36CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

Memory leak in Cisco Unified Communications Manager (CUCM) 6.x before 6.1(5)su2, 7.x before 7.1(5b)su3, 8.x before 8.0(3a)su1, and 8.5 before 8.5(1), and Cisco IOS 12.4 and 15.1, allows remote attackers to cause a denial of service (memory consumption and process failure or device reload) via a malformed SIP message, aka Bug IDs CSCti75128 and CSCtj09179.

Why it matters now

EPSS 0.0121 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 53

CPEVersionsRoleVendor
cpe:2.3:a:cisco:unified_communications_manager:6.0:*:*:*:*:*:*:*6.0VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(1\):*:*:*:*:*:*:*6.1(1)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(1a\):*:*:*:*:*:*:*6.1(1a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(1b\):*:*:*:*:*:*:*6.1(1b)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\):*:*:*:*:*:*:*6.1(2)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1:*:*:*:*:*:*:*6.1(2)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1a:*:*:*:*:*:*:*6.1(2)su1aVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(3\):*:*:*:*:*:*:*6.1(3)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(3a\):*:*:*:*:*:*:*6.1(3a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\):*:*:*:*:*:*:*6.1(3b)VulnerableCisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(1\):*:*:*:*:*:*:* Versions 6.1(1) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(1a\):*:*:*:*:*:*:* Versions 6.1(1a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(1b\):*:*:*:*:*:*:* Versions 6.1(1b) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\):*:*:*:*:*:*:* Versions 6.1(2) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1:*:*:*:*:*:*:* Versions 6.1(2)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1a:*:*:*:*:*:*:* Versions 6.1(2)su1a Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(3\):*:*:*:*:*:*:* Versions 6.1(3) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(3a\):*:*:*:*:*:*:* Versions 6.1(3a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\):*:*:*:*:*:*:* Versions 6.1(3b) Vulnerable ·Cisco
Show 43 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\)su1:*:*:*:*:*:*:*6.1(3b)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\):*:*:*:*:*:*:*6.1(4)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\)su1:*:*:*:*:*:*:*6.1(4)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\):*:*:*:*:*:*:*6.1(4a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\)su2:*:*:*:*:*:*:*6.1(4a)su2VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\):*:*:*:*:*:*:*6.1(5)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\)su1:*:*:*:*:*:*:*6.1(5)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1:*:*:*:*:*:*:*7.0(1)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1a:*:*:*:*:*:*:*7.0(1)su1aVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(2\):*:*:*:*:*:*:*7.0(2)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\):*:*:*:*:*:*:*7.0(2a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su1:*:*:*:*:*:*:*7.0(2a)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su2:*:*:*:*:*:*:*7.0(2a)su2VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\):*:*:*:*:*:*:*7.1(2a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\)su1:*:*:*:*:*:*:*7.1(2a)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\):*:*:*:*:*:*:*7.1(2b)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\)su1:*:*:*:*:*:*:*7.1(2b)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3\):*:*:*:*:*:*:*7.1(3)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\):*:*:*:*:*:*:*7.1(3a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1:*:*:*:*:*:*:*7.1(3a)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1a:*:*:*:*:*:*:*7.1(3a)su1aVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\):*:*:*:*:*:*:*7.1(3b)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su1:*:*:*:*:*:*:*7.1(3b)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su2:*:*:*:*:*:*:*7.1(3b)su2VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\):*:*:*:*:*:*:*7.1(5)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1:*:*:*:*:*:*:*7.1(5)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1a:*:*:*:*:*:*:*7.1(5)su1aVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5a\):*:*:*:*:*:*:*7.1(5a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\):*:*:*:*:*:*:*7.1(5b)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su1:*:*:*:*:*:*:*7.1(5b)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su1a:*:*:*:*:*:*:*7.1(5b)su1aVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su2:*:*:*:*:*:*:*7.1(5b)su2VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0:*:*:*:*:*:*:*8.0VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(1\):*:*:*:*:*:*:*8.0(1)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(2\):*:*:*:*:*:*:*8.0(2)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(2a\):*:*:*:*:*:*:*8.0(2a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(2b\):*:*:*:*:*:*:*8.0(2b)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(2c\):*:*:*:*:*:*:*8.0(2c)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(2c\)su1:*:*:*:*:*:*:*8.0(2c)su1VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.0\(3a\):*:*:*:*:*:*:*8.0(3a)VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:8.5:*:*:*:*:*:*:*8.5VulnerableCisco
cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*12.4VulnerableCisco
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*15.1VulnerableCisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\)su1:*:*:*:*:*:*:* Versions 6.1(3b)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\):*:*:*:*:*:*:* Versions 6.1(4) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\)su1:*:*:*:*:*:*:* Versions 6.1(4)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\):*:*:*:*:*:*:* Versions 6.1(4a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\)su2:*:*:*:*:*:*:* Versions 6.1(4a)su2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\):*:*:*:*:*:*:* Versions 6.1(5) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\)su1:*:*:*:*:*:*:* Versions 6.1(5)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1:*:*:*:*:*:*:* Versions 7.0(1)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1a:*:*:*:*:*:*:* Versions 7.0(1)su1a Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(2\):*:*:*:*:*:*:* Versions 7.0(2) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\):*:*:*:*:*:*:* Versions 7.0(2a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su1:*:*:*:*:*:*:* Versions 7.0(2a)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su2:*:*:*:*:*:*:* Versions 7.0(2a)su2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\):*:*:*:*:*:*:* Versions 7.1(2a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\)su1:*:*:*:*:*:*:* Versions 7.1(2a)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\):*:*:*:*:*:*:* Versions 7.1(2b) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\)su1:*:*:*:*:*:*:* Versions 7.1(2b)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3\):*:*:*:*:*:*:* Versions 7.1(3) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\):*:*:*:*:*:*:* Versions 7.1(3a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1:*:*:*:*:*:*:* Versions 7.1(3a)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1a:*:*:*:*:*:*:* Versions 7.1(3a)su1a Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\):*:*:*:*:*:*:* Versions 7.1(3b) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su1:*:*:*:*:*:*:* Versions 7.1(3b)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su2:*:*:*:*:*:*:* Versions 7.1(3b)su2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\):*:*:*:*:*:*:* Versions 7.1(5) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1:*:*:*:*:*:*:* Versions 7.1(5)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1a:*:*:*:*:*:*:* Versions 7.1(5)su1a Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5a\):*:*:*:*:*:*:* Versions 7.1(5a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\):*:*:*:*:*:*:* Versions 7.1(5b) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su1:*:*:*:*:*:*:* Versions 7.1(5b)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su1a:*:*:*:*:*:*:* Versions 7.1(5b)su1a Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su2:*:*:*:*:*:*:* Versions 7.1(5b)su2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(1\):*:*:*:*:*:*:* Versions 8.0(1) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(2\):*:*:*:*:*:*:* Versions 8.0(2) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(2a\):*:*:*:*:*:*:* Versions 8.0(2a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(2b\):*:*:*:*:*:*:* Versions 8.0(2b) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(2c\):*:*:*:*:*:*:* Versions 8.0(2c) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(2c\)su1:*:*:*:*:*:*:* Versions 8.0(2c)su1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.0\(3a\):*:*:*:*:*:*:* Versions 8.0(3a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:8.5:*:*:*:*:*:*:* Versions 8.5 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:* Versions 12.4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-0941
  2. 2026-10-03 Alias added: GHSA-4prw-wg9m-4gxq

References

Advisory 1

Other 1

  • TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
See all 617 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences