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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
2026-06-29
Advisory published
2026-06-12
Advisory updated
2026-06-29

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].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53406 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53406

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-53406 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53406

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.