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TI-2011-03551 Aliases CVE-2011-4019GHSA-hc4w-748f-rggp

Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications…

Priority LOW 27CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
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 IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.

Why it matters now

EPSS 0.01114 66th 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 · 37

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*12.4VulnerableCisco
cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*15.0VulnerableCisco
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*15.1VulnerableCisco
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*15.2VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0:*:*:*:*:*:*:*7.0VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\):*:*:*:*:*:*:*7.0(1)VulnerableCisco
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:o:cisco:ios:12.4:*:*:*:*:*:*:* Versions 12.4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\):*:*:*:*:*:*:* Versions 7.0(1) 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
Show 27 more CPE
CPEVersionsRoleVendor
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:7.0_base:*:*:*:*:*:*:*7.0_baseVulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1:*:*:*:*:*:*:*7.1VulnerableCisco
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:7.1\(5b\)su3:*:*:*:*:*:*:*7.1(5b)su3VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su4:*:*:*:*:*:*:*7.1(5b)su4VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su5:*:*:*:*:*:*:*7.1(5b)su5VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager:7.1_base:*:*:*:*:*:*:*7.1_baseVulnerableCisco
  • 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:7.0_base:*:*:*:*:*:*:* Versions 7.0_base Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1:*:*:*:*:*:*:* Versions 7.1 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:7.1\(5b\)su3:*:*:*:*:*:*:* Versions 7.1(5b)su3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su4:*:*:*:*:*:*:* Versions 7.1(5b)su4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\)su5:*:*:*:*:*:*:* Versions 7.1(5b)su5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager:7.1_base:*:*:*:*:*:*:* Versions 7.1_base Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-4019
  2. 2026-10-03 Alias added: GHSA-hc4w-748f-rggp

References

Other 2

  • 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