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2025-08-29
WhatsApp iOS and macOS Linked Device Synchronization Authorization Bypass Vulnerability (CVE-2025-55177) Advisory
[Affected Scope] WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS prior to v2.25.21.78, and WhatsApp for Mac prior to v2.25.21.78
[Impact] Unrelated attackers can bypass authorization to trigger the processing of arbitrary URL content on target devices, potentially leading to full device compromise when chained with OS-level exploits
[Mitigation] Immediately update WhatsApp and WhatsApp Business to the latest secure versions via the App Store and apply pending Apple OS security patches