Zoom Annotation Flaws Could Let a Meeting Participant Hijack Another Attendee's Client

Anyone sharing their screen on a Zoom call could have taken over the computers of everyone watching, and anyone watching could have taken over the presenter's.

The flaw sat in the annotation tool, the feature that lets participants draw and type on a shared screen, and it asked nothing of the victim beyond being in the meeting. No click, no download, no prompt, and nothing on screen to show it

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https://thehackernews.com/2026/08/zoom-annotation-flaws-could-let-meeting.html

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https://thehackernews.com/2026/08/zoom-annotation-flaws-could-let-meeting.html

id: 2510
uid: wuIkV
insdate: 2026-08-11 21:10:18
title: Zoom Annotation Flaws Could Let a Meeting Participant Hijack Another Attendee's Client
additional: Anyone sharing their screen on a Zoom call could have taken over the computers of everyone watching, and anyone watching could have taken over the presenter's.

The flaw sat in the annotation tool, the feature that lets participants draw and type on a shared screen, and it asked nothing of the victim beyond being in the meeting. No click, no download, no prompt, and nothing on screen to show it
category: Cybersecurity
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guid: https://thehackernews.com/2026/08/zoom-annotation-flaws-could-let-meeting.html
source_url: https://thehackernews.com/2026/08/zoom-annotation-flaws-could-let-meeting.html
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