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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.

PUBLISHED Reserved 2025-08-08 | Published 2025-08-29 | Updated 2025-09-02 | Assigner facebook




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C

CISA Known Exploited Vulnerability

Date added 2025-09-02 | Due date 2025-09-23

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Problem types

Incorrect Authorization (CWE-863)

Product status

Default status
unaffected

2.22.25.2 before 2.25.21.78
affected

Default status
unaffected

2.22.25.2 before 2.25.21.78
affected

Default status
unaffected

2.22.25.2 before 2.25.21.73
affected

References

www.facebook.com/security/advisories/cve-2025-55177

www.whatsapp.com/security/advisories/2025/

cve.org (CVE-2025-55177)

nvd.nist.gov (CVE-2025-55177)

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