CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Sep 23, 2025

High

CISA KEV

CVE-2025-55177

Meta Platforms—WhatsApp

Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device.

Required Action

https://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177

Vulnerability Overview

Severity: High
CISA KEV: Yes
Ransomware: Unknown
Published: Sep 2, 2025
KEV Added: Sep 2, 2025
Due Date: Sep 23, 2025
Related Articles: 0

Vendor

Meta Platforms