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
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.
EPSS — Exploit Probability
0.9%
Higher than 76.1% of all CVEs
Required Action
https://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177
Risk Assessment
ELEVATEDIn CISA KEV
Details
- Severity
- High
- EPSS
- 0.9%
- CISA KEV
- Yes
- Ransomware
- Unknown
- Articles
- 0
Timeline
Published
Sep 2, 2025
Added to KEV
Sep 2, 2025
Remediation Due
Sep 23, 2025