CVE-2025-55177 — Actively Exploited: WhatsApp (Meta Platforms)
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.
| CVE ID | CVE-2025-55177 |
|---|---|
| Vendor | Meta Platforms |
| Product | |
| Vulnerability name | Meta Platforms WhatsApp Incorrect Authorization Vulnerability |
| Date added | 2025-09-02 |
| Remediation due | 2025-09-23 |
| Known ransomware use | Unknown |
| 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. |
| 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. |
| Source | CISA Known Exploited Vulnerabilities |
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