CVE-2021-30480: Zoom Chat

High severity, CVSS 8.8. EPSS: 5.8% chance of exploitation in the next 30 days.

Zoom Chat through 2021-04-09 on Windows and macOS allows certain remote authenticated attackers to execute arbitrary code without user interaction. An attacker must be within the same organization, or an external party who has been accepted as a contact. NOTE: this is specific to the Zoom Chat software, which is different from the chat feature of the Zoom Meetings and Zoom Video Webinars software.

Affected products

• Zoom Chat: up to and including 2021-04-09

Published 2021-04-09. Last modified 2026-06-17.