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TI-2020-02827 Aliases CVE-2020-3267GHSA-9vch-84p9-292x

Cisco Unified Contact Center Express Improper API Authorization Vulnerability

Priority LOW 33CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Information disclosure
Confidentiality · integrity · availability
None · Low · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-285 and CWE-552.

Summary

A vulnerability in the API subsystem of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to change the availability state of any agent. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by authenticating to an affected system with valid agent credentials and performing a specific API call with crafted input. A successful exploit could allow the attacker to change the availability state of an agent, potentially causing a denial of service condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00806 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Unified Contact Center Expressall versions—No fix listedCNA
  • Cisco Unified Contact Center Express VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*before 12.5\(1\)VulnerableCisco
  • cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:* Versions before 12.5\(1\) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3267
  2. 2026-10-03 Alias added: GHSA-9vch-84p9-292x

References

Advisory 1

  • 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-2020-02838 Cisco Unified Contact Center Express Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2018-00362 Cross-site scripting in Cisco Unified Contact Center Express unknown CVSS 3.0CRITICAL 9.8
  • TI-2024-13188 Deserialization of untrusted data in Cisco Unified Contact Center Enterprise CVSS 3.1CRITICAL 10.0
  • TI-2025-14653 Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2017-09109 Improper authentication in Cisco Voice Operating System CVSS 3.0CRITICAL 9.8
See all 47 →

Sources

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