Memory leak in Cisco Unified Communications Manager (Unified CM) 8.5(x) before 8.5(1)su6…
Priority LOW 37CWE-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 (Unified CM) 8.5(x) before 8.5(1)su6, 8.6(x) before 8.6(2a)su3, and 9.x before 9.1(1) allows remote attackers to cause a denial of service (service disruption) via a high rate of UDP packets, aka Bug ID CSCub85597.
Why it matters now
EPSS 0.01563 75th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_communications_manager:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(1\):*:*:*:*:*:*:* | 8.6(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(1a\):*:*:*:*:*:*:* | 8.6(1a) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(2\):*:*:*:*:*:*:* | 8.6(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\):*:*:*:*:*:*:* | 8.6(2a) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su1:*:*:*:*:*:*:* | 8.6(2a)su1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su2:*:*:*:*:*:*:* | 8.6(2a)su2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:9.0\(1\):*:*:*:*:*:*:* | 9.0(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5:*:*:*:*:*:*:* | 8.5 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\):*:*:*:*:*:*:* | 8.5(1) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_communications_manager:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(1\):*:*:*:*:*:*:* Versions 8.6(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(1a\):*:*:*:*:*:*:* Versions 8.6(1a) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(2\):*:*:*:*:*:*:* Versions 8.6(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\):*:*:*:*:*:*:* Versions 8.6(2a) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su1:*:*:*:*:*:*:* Versions 8.6(2a)su1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su2:*:*:*:*:*:*:* Versions 8.6(2a)su2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:9.0\(1\):*:*:*:*:*:*:* Versions 9.0(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5:*:*:*:*:*:*:* Versions 8.5 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\):*:*:*:*:*:*:* Versions 8.5(1) Vulnerable ·Cisco
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su1:*:*:*:*:*:*:* | 8.5(1)su1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su2:*:*:*:*:*:*:* | 8.5(1)su2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su3:*:*:*:*:*:*:* | 8.5(1)su3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su4:*:*:*:*:*:*:* | 8.5(1)su4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su5:*:*:*:*:*:*:* | 8.5(1)su5 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su1:*:*:*:*:*:*:* Versions 8.5(1)su1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su2:*:*:*:*:*:*:* Versions 8.5(1)su2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su3:*:*:*:*:*:*:* Versions 8.5(1)su3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su4:*:*:*:*:*:*:* Versions 8.5(1)su4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:8.5\(1\)su5:*:*:*:*:*:*:* Versions 8.5(1)su5 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-3460
- 2026-10-03 Alias added: GHSA-hqpx-mggj-gjxq
References
More Cisco Unified Communications Manager vulnerabilities
- TI-2026-16259 Cisco Unified Communications Products Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2026-16423 Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability KEVCVSS 3.1HIGH 8.6
- TI-2008-00019 Heap-based buffer overflow in the Certificate Trust List (CTL) Provider service… CVSS 2.0HIGH 10.0
- TI-2013-05779 The TFTP service in Cisco Unified Communications Manager (aka CUCM or Unified CM) allows… CVSS 3.1HIGH 7.3
- TI-2011-02932 Directory traversal vulnerability in Cisco Unified Communications Manager (CUCM) 5.x and… CVSS 2.0HIGH 7.8
Sources
- CVE-2013-3460 · CVE Program
- CVE-2013-3460 · NVD
- FIRST EPSS
- GHSA-hqpx-mggj-gjxq · GitHub Advisory Database · CC BY 4.0
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