Critical

Zoom Patches “Zoomsday” Zero-Click Flaw Enabling Remote Code Execution

Security Affairs

August 11, 2026 at 5:48 PM

Overview

Zoom has addressed a serious vulnerability in its software that could allow a participant in a video meeting to execute malicious code on another user’s device via the annotation feature. This flaw, known as CVE-2026-53413, is categorized as a zero-click vulnerability, meaning it does not require any interaction from the victim to be exploited. Discovered by A Security, the issue is part of a broader update where Zoom patched a total of four vulnerabilities. The existence of such a flaw raises significant concerns about user safety and privacy during online meetings, as it could potentially lead to unauthorized access to sensitive information. Users are advised to update their Zoom applications to the latest version to protect themselves from possible exploitation.

Key Takeaways

Affected Systems: Zoom application, specifically the annotation feature.
Action Required: Users should update their Zoom application to the latest version to patch the vulnerabilities, including CVE-2026-53413.
Timeline: Newly disclosed

Original Article Summary

Zoom patches a zero-click flaw that could let a meeting participant execute code on another user’s computer through the annotation feature. Zoom has patched four vulnerabilities, including a critical zero-click flaw, tracked as CVE-2026-53413, in its annotation feature. CVE-2026-53413 is a memory corruption issue found by A Security that could allow a meeting participant to […]

Impact

Zoom application, specifically the annotation feature.

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Newly disclosed

Remediation

Users should update their Zoom application to the latest version to patch the vulnerabilities, including CVE-2026-53413.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Update, and 1 more.

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