CVE-2020-3163

Cisco Unified Contact Center Enterprise Denial of Service Vulnerability

MEDIUM
5.9
CVSS Score
Published: February 19, 2020 at 07:15 PM UTC
Updated: June 17, 2026 at 03:17 AM UTC
1 product affected across 1 vendorUnified Contact Center Enterprise

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 12.5(1)
Affected range stops below 12.5(1), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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