Cisco Unified Contact Center Express (Unified CCX) Deserialization Code Execution Vulnerability (CVE-2020-3280) Threat Alert

Cisco Unified Contact Center Express (Unified CCX) Deserialization Code Execution Vulnerability (CVE-2020-3280) Threat Alert

junho 2, 2020 | Adeline Zhang


Recently, Cisco officially released a security advisory, announcing the fix of a high-risk vulnerability (CVE-2020-3280) in Unified Contact Center Express (Unified CCX). The vulnerability stems from the fact that during the deserialization operation of the software, the input provided by the user is not sufficiently restricted. The attacker can send a malicious Java object to trigger the vulnerability without authorization to execute arbitrary code.

CVSS3.0 Base Score: 9.8


Cisco Unified Contact Center Express (Unified CCX) is a customer relationship management component of a unified communications solution from Cisco in the United States. This component supports functions such as self-service voice service, call distribution, and customer access control.

Affected Devices

Cisco Unified CCX <= 12.0

Unaffected Devices

Cisco Unified CCX 12.0(1)ES03

Cisco Unified CCX 12.5


Cisco has released version 6.7.1 to fix the preceding vulnerability. Affected users are advised to upgrade as soon as possible.

For details, click the following link:


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