CVEvulnerability

CVE-2025-55177

5.4 MEDIUM Known exploited Published 2025-08-29 Modified 2026-10-18 Official page ↗

CISA Known Exploited Vulnerability

Meta Platforms WhatsApp Incorrect Authorization Vulnerability — 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.

Added to KEV
2025-09-02
Remediation due
2025-09-23
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.
Notes
https://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177
Status
Analyzed
Published
2025-08-29
Last modified
2026-10-18
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863

Description

Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78 could have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple platforms (CVE-2025-43300), may have been exploited in a sophisticated attack against specific targeted users.

Affected configurations

• whatsapp whatsapp (>= 2.22.25.2 < 2.25.21.73) • whatsapp whatsapp (>= 2.22.25.2 < 2.25.21.78) • whatsapp whatsapp business (>= 2.22.25.2 < 2.25.21.78)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References