VULNERABILITY INTELLIGENCE

CVE-2025-55177

CVSS score5.4 MEDIUM
EPSS probability13.51%
CISA KEVKnown exploited vulnerability
Published2025-08-29
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Known Exploited Vulnerability

Meta Platforms WhatsApp Incorrect Authorization Vulnerability

Vendor / product: Meta Platforms / WhatsApp

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.

Weakness classification

  • nvd@nist.gov: CWE-863
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-863

Primary references