CVE-2025-55177
Meta Platforms WhatsApp Incorrect Authorization Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-09-02. Federal due date: 2025-09-23.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
from 2.22.25.2 before 2.25.21.73 from 2.22.25.2 before 2.25.21.78 | ||
| Whatsapp Business | from 2.22.25.2 before 2.25.21.78 |