CVE-2025-55177: Meta Platforms WhatsApp Incorrect Authorization Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Meta Platforms WhatsApp Incorrect Authorization Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Facebook: WhatsApp Business for iOSFacebook: WhatsApp Desktop for MacFacebook: WhatsApp for iOS
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- www.facebook.com/security/advisories/cve-2025-55177 (opens in new tab)
- www.whatsapp.com/security/advisories/2025/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)