PatchSiren cyber security CVE debrief

CVE-2026-53406 Zoom Communications CVE debrief

CVE-2026-53406 is a high-severity vulnerability (CVSS Score: 7.8) affecting Zoom Contact Center for Windows before version 7.0.0. The vulnerability is caused by insufficient verification of data authenticity in the remote control feature, which may allow an authenticated user to enable an escalation of privilege via local access.

Vendor: Zoom Communications
Product: Remote Control for Zoom Contact Center
CVSS: HIGH 7.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-12
Original CVE updated: 2026-06-12
Advisory published: 2026-06-12
Advisory updated: 2026-06-12

Who should care

Users of Zoom Contact Center for Windows before version 7.0.0 should apply the necessary updates to mitigate this vulnerability.

Technical summary

The vulnerability has a CVSS vector of CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. It is classified under CWE-345: Insufficient Verification of Data Authenticity.

Defensive priority

High

Recommended defensive actions

Update Zoom Contact Center for Windows to version 7.0.0 or later.
Ensure that all users with access to the affected system are authenticated and have the necessary privileges.
Monitor the system for any suspicious activity.

Evidence notes

The CVE record was obtained from the official CVE.org website [cve-org]. Additional information was obtained from the National Vulnerability Database (NVD) [nvd] and a security bulletin from Zoom [ref-4].

Official resources

CVE-2026-53406 was published on 2026-06-12T18:16:35.457Z and has not been modified since then.