1. Home
  2. Vulnerabilities
  3. CVE-2025-55177
8.0
HIGH CVSS 3.1
CVE-2025-55177
WhatsApp iOS/WhatsApp Business for iOS/WhatsApp for Mac URL Processing Authorization Bypass
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.

INFO

Published Date :

Aug. 29, 2025, 4:15 p.m.

Last Modified :

Aug. 30, 2025, 5:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-55177 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Whatsapp whatsapp
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM [email protected]
Solution
Update WhatsApp for iOS, WhatsApp Business for iOS, or WhatsApp for Mac to the latest version.
  • Update WhatsApp for iOS to v2.25.21.73 or later.
  • Update WhatsApp Business for iOS to v2.25.21.78 or later.
  • Update WhatsApp for Mac to v2.25.21.78 or later.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-55177.

URL Resource
https://www.facebook.com/security/advisories/cve-2025-55177
https://www.whatsapp.com/security/advisories/2025/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-55177 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-55177 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-55177 vulnerability anywhere in the article.

  • The Hacker News
WhatsApp Issues Emergency Update for Zero-Click Exploit Targeting iOS and macOS Devices

Aug 30, 2025Ravie LakshmananZero-Day / Vulnerability WhatsApp has addressed a security vulnerability in its messaging apps for Apple iOS and macOS that it said may have been exploited in the wild in ... Read more

Published Date: Aug 30, 2025 (13 hours, 32 minutes ago)
  • TheCyberThrone
WhatsApp’s Zero-Click Vulnerability and Targeted Spyware Attacks

August 30, 2025A newly discovered critical vulnerability has put WhatsApp users across the globe on high alert. CVE-2025-55177, patched in August 2025, was a serious flaw affecting WhatsApp and WhatsA ... Read more

Published Date: Aug 30, 2025 (15 hours, 40 minutes ago)
  • Daily CyberSecurity
QNAP Patches Critical Flaw (CVE-2025-52856) with CVSS 9.3

QNAP has released a security advisory addressing multiple vulnerabilities affecting the QVR firmware on legacy VioStor NVR devices. The flaws include an improper authentication bug and a path traversa ... Read more

Published Date: Aug 29, 2025 (23 hours, 53 minutes ago)
  • Daily CyberSecurity
A Critical Zero-Click WhatsApp Flaw, CVE-2025-55177, Was Exploited in Zero-Day Attacks

Meta’s WhatsApp Security Team has patched a zero-day flaw (CVE-2025-55177) in WhatsApp for iOS (prior to v2.25.21.73), WhatsApp Business for iOS (prior to v2.25.21.78), and WhatsApp for Mac (prior to ... Read more

Published Date: Aug 29, 2025 (1 day ago)
  • CybersecurityNews
WhatsApp 0-Day Vulnerability Exploited to Hack Mac and iOS Users

A sophisticated attack campaign has leveraged a previously unknown zero-day vulnerability in WhatsApp on Apple devices to target specific users, the company has confirmed. The vulnerability, now ident ... Read more

Published Date: Aug 29, 2025 (1 day, 1 hour ago)
  • BleepingComputer
WhatsApp patches vulnerability exploited in zero-day attacks

WhatsApp has patched a security vulnerability in its iOS and macOS messaging clients that was exploited in targeted zero-day attacks. The company says this zero-click flaw (tracked as CVE-2025-55177) ... Read more

Published Date: Aug 29, 2025 (1 day, 1 hour ago)
  • Daily CyberSecurity
Multi Flaws Found in HikCentral, Including a Bypass for Admin Access (CVE-2025-39247)

The Hikvision Security Response Center (HSRC) has released a new advisory detailing three vulnerabilities affecting different versions of the company’s HikCentral product line. The flaws range from CS ... Read more

Published Date: Aug 29, 2025 (1 day, 8 hours ago)
  • Daily CyberSecurity
CRITICAL Zero-Day CVE-2025-57819 in FreePBX Is Under Active Attack (CVSS 10.0)

The Sangoma FreePBX Security Team has issued a critical advisory for a newly discovered vulnerability in its popular open-source telephony platform. Tracked as CVE-2025-57819 with a maximum CVSSv4 sco ... Read more

Published Date: Aug 29, 2025 (1 day, 15 hours ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-55177 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Aug. 30, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
    Added Reference https://www.facebook.com/security/advisories/cve-2025-55177
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 29, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
  • New CVE Received by [email protected]

    Aug. 29, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://www.whatsapp.com/security/advisories/2025/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.0
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact