SB2025090130 - Improper authorization in WhatsApp for iOS and macOS
Published: September 1, 2025
Security Bulletin ID
SB2025090130
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper authorization (CVE-ID: CVE-2025-55177)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper authorization of linked device synchronization messages. A remote attacker can force the application to process content from an arbitrary URL on a target device.
Note, the vulnerability is being actively exploited in the wild in conjunction with #VU114314 (CVE-2025-43300).
Remediation
Install update from vendor's website.