CVE-2025-55177
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-29

Last updated on: 2025-10-24

Assigner: Facebook, Inc.

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.
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Meta Information
Published
2025-08-29
Last Modified
2025-10-24
Generated
2026-06-16
AI Q&A
2025-08-29
EPSS Evaluated
2026-06-15
NVD
CVE-2025-55177
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
whatsapp whatsapp From 2.22.25.2 (inc) to 2.25.21.73 (exc)
whatsapp whatsapp From 2.22.25.2 (inc) to 2.25.21.78 (exc)
whatsapp whatsapp_business From 2.22.25.2 (inc) to 2.25.21.78 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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Executive Summary

This vulnerability involves incomplete authorization of linked device synchronization messages in certain versions of WhatsApp for iOS and Mac. It could allow an unrelated user to trigger processing of content from an arbitrary URL on a target's device, potentially leading to unauthorized actions or data exposure. The issue may be exploited in combination with another OS-level vulnerability on Apple platforms.

Impact Analysis

The vulnerability could allow an attacker to cause a target device to process content from arbitrary URLs without proper authorization, potentially leading to unauthorized data access, execution of malicious content, or other security breaches. This could compromise the security and privacy of the affected user's device and data.

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