CVE-2025-55177
Meta Platforms WhatsApp Incorrect Authorization Vulnerability
CVSS
—
No CVSS
EPSS
4.2%
p90
KEV
YES
Sep 2, 2025
Exploit Today
77
0-100
Published: — · Last modified: —
Product
Meta Platforms / WhatsApp
Vulnerability
Meta Platforms WhatsApp Incorrect Authorization Vulnerability
Added to KEV
Sep 2, 2025
Remediate by
Sep 23, 2025
Known ransomware use
No
Summary description
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
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177