Medium severity5.4CISA KEVNVD Advisory· Published Aug 29, 2025· Updated Jun 17, 2026
CVE-2025-55177
CVE-2025-55177
Description
Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78 could have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple platforms (CVE-2025-43300), may have been exploited in a sophisticated attack against specific targeted users.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*+ 1 more
- cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*range: >=2.22.25.2,<2.25.21.78
- (no CPE)range: <2.25.21.78
- Range: <2.25.21.78
- Range: <2.25.21.73
- Range: 2.22.25.2
- Range: 2.22.25.2
- Range: 2.22.25.2
Patches
Vulnerability mechanics
References
3- www.facebook.com/security/advisories/cve-2025-55177nvdVendor Advisory
- www.whatsapp.com/security/advisories/2025/nvdVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
1- New 0-Click WhatsApp Account Takeover Attack Targeting iOS 16 UsersCyber Security News · May 27, 2026