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TI-2020-02725 Aliases CVE-2020-3163GHSA-759q-wfqr-9x82

Cisco Unified Contact Center Enterprise Denial of Service Vulnerability

Priority LOW 28CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability in the Live Data server of Cisco Unified Contact Center Enterprise could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the affected software improperly manages resources when processing inbound Live Data traffic. An attacker could exploit this vulnerability by sending multiple crafted Live Data packets to an affected device. A successful exploit could cause the affected device to run out of buffer resources, which could result in a stack overflow and cause the affected device to reload, resulting in a DoS condition. Note: The Live Data port in Cisco Unified Contact Center Enterprise devices allows only a single TCP connection. To exploit this vulnerability, an attacker would have to send crafted packets to an affected device before a legitimate Live Data client establishes a connection.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00895 59th 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 Enterpriseall versions—No fix listedCNA
  • Cisco Unified Contact Center Enterprise VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:unified_contact_center_enterprise:*:*:*:*:*:*:*:*before 12.5\(1\)VulnerableCisco
  • cpe:2.3:a:cisco:unified_contact_center_enterprise:*:*:*:*:*:*:*:* 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-2020-3163
  2. 2026-10-03 Alias added: GHSA-759q-wfqr-9x82

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-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14542 Improper access control in Cisco Unified Contact Center Enterprise CVSS 3.1CRITICAL 9.1
  • TI-2007-05324 Unspecified vulnerability in Cisco Unified Intelligent Contact Management Enterprise… CVSS 2.0HIGH 9.0
  • TI-2023-06769 Cisco Unified Intelligence Center Vulnerabilities CVSS 3.1MEDIUM 6.5
  • TI-2023-06770 Cisco Unified Intelligence Center Vulnerabilities CVSS 3.1MEDIUM 6.5
See all 13 →

Sources

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