Researchers at Acros Security have also developed a working proof-of-concept exploit for the vulnerability, which they have shared with Zoom and will not release until the company fixes the issue. "However, enterprise admins often like to keep control of updates and may stay a couple of versions behind, especially if no security bugs were fixed in the latest versions (which is currently the case)." "Zoom Client features a fairly persistent auto-update functionality that is likely to keep home users updated unless they really don't want to be," Kolsek said. When a user enables 0patch on their system, the malicious code sent by an attacker doesn't get executed when a Zoom user clicks on the "Start Video" button. Researchers at Acros Security, the creators of 0patch, have developed a micro patch for all versions of Zoom Client for Windows (starting with version 5.0.3 and all up to the latest version 5.1.2) to address the security issue and released them to everyone for free until Zoom Video Communications delivers an official security patch. While Microsoft ended official support for Windows 7 this January and encouraged users to switch to more secure versions of the operating system, Windows 7 is still widely used by users and organizations at large.
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