Buffer Overflow Vulnerability in Zoom Phone Feature of Zoom Workplace Clients

CVE-2026-53420

What is CVE-2026-53420?

A critical buffer overflow vulnerability in the Zoom Phone feature of Zoom Workplace Clients could enable unauthenticated users to escalate privileges through network access. This vulnerability poses significant security risks, allowing potential attackers to gain unauthorized access and manipulate sensitive information within the Zoom environment. Organizations using Zoom need to ensure they are up-to-date with security patches to mitigate the risk associated with this weakness.

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