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Zoom patches critical Windows vulnerability allowing unauthenticated account takeover

Feeds.4Sysops •IT News • July 16, 2026

Zoom has issued an urgent security advisory regarding a critical vulnerability in its Windows-based applications that could lead to full account hijacking. Tracked as CVE-2026-53412, the flaw carries a near-maximum CVSS score of 9.8 due to its high impact and ease of exploitation. The security hole stems from improper input validation, which allows an unauthenticated attacker to gain unauthorized access via the network. Source

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Critical Zoom Vulnerability Allows Unauthenticated Account Takeover Zoom has patched a critical vulnerability (CVE-2026-53412) in its Windows desktop client and VDI software that could allow unauthenticated attackers to take over user accounts via network access. The flaw, rated 9.8 out of 10 on the CVSS scale, stems from improper input validation and affects multiple versions of Zoom Workplace and the VDI Client for Windows. Users are urged to update immediately to mitigate potential exploitation, as the vulnerability could lead to unauthorized access to sensitive meetings and data. No evidence of active exploitation has been reported, but the nature of the vulnerability poses significant risks to enterprises using Zoom for collaboration. Additional vulnerabilities were also patched in this update, including privilege escalation issues. The security advisory emphasizes the urgency for organizations to apply the latest updates without delay. 16 sources 73

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Zoom patches critical Windows vulnerability allowing unauthenticated account takeover

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