Zoom Annotation Flaws Could Let a Meeting Participant Hijack Another Attendee's Client
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Zoom addressed three critical vulnerabilities in its annotation feature that could allow a meeting participant to hijack another attendee's client without any user interaction. The flaws include a buffer overflow (CVE-2026-53413), a buffer over-read (CVE-2026-53414), and a use-after-free (CVE-2026-53415), all of which could be exploited remotely in a zero-click scenario. The vulnerabilities affect multiple Zoom clients and were patched in versions released in June and July 2026, though no exploitation has been observed in the wild. The research was conducted by A Security, which demonstrated rapid exploit development using publicly available AI models.
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