MEDIUMCVSS v3.1 5.4Actively exploited · CISA KEV since 2025-09-02Vulnerability
CVE-2025-55177
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.
Properties
- Euvd product
- WhatsApp Desktop for Mac, WhatsApp for iOS, WhatsApp Business for iOS
- Vulnerability name
- Meta Platforms WhatsApp Incorrect Authorization Vulnerability
- First seen
- 2026-10-07T17:57:35+00:00
- Cvss score
- 5.4
- Epss score
- 0.04734
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2025-09-23
- Euvd assigner
- Retrieved at
- 2026-10-21T01:24:48+00:00
- Exploited euvd since
- 2025-09-02T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2025-09-02
- Euvd base score version
- 3.1
- Score
- 5.4
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 5.4
Related Entities (6)
AFFECTS_PRODUCT (3)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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