Cisco Unified Communications Manager XML External Expansion Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability in the web-based interface of Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition (SME) could allow an unauthenticated, remote attacker to access sensitive information or cause a denial of service (DoS) condition. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by sending malicious requests to an affected system that contain references in XML entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the application to consume available resources, resulting in a DoS condition.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Unified Communications Manager | all versions | — | No fix listed | CNA |
- Cisco Unified Communications Manager VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):*:*:*:*:*:*:* | 10.5(2.10000.5) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.10000.6\):*:*:*:*:*:*:* | 11.5(1.10000.6) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:12.0\(1.10000.10\):*:*:*:*:*:*:* | 12.0(1.10000.10) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:12.5\(1.10000.22\):*:*:*:*:*:*:* | 12.5(1.10000.22) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):*:*:*:*:*:*:* Versions 10.5(2.10000.5) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.10000.6\):*:*:*:*:*:*:* Versions 11.5(1.10000.6) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:12.0\(1.10000.10\):*:*:*:*:*:*:* Versions 12.0(1.10000.10) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:12.5\(1.10000.22\):*:*:*:*:*:*:* Versions 12.5(1.10000.22) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Cisco Unified Communications Manager n/a
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-11384 Cisco Unified Communications Manager Security Bypass VulnerabilityPriority LOW 38
- TI-2019-01536 Multiple Cisco Unified Communications Products Cross-Site Request Forgery VulnerabilityPriority LOW 30
- TI-2019-09511 Cisco Unified Communications Manager Cross-Site Scripting VulnerabilityPriority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12711
- 2026-10-03 Alias added: GHSA-8973-52qv-v8p9
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-2019-12711 · CVE Program
- CVE-2019-12711 · NVD
- FIRST EPSS
- GHSA-8973-52qv-v8p9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences