---
title: "CVE-2025-55177: Incorrect Authorization | CubePath"
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…"
language: en
source: https://cubepath.com/security/cve/CVE-2025-55177
---

# CVE-2025-55177: Incorrect Authorization | CubePath

## 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.

Official description from the CVE record, published by facebook. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-55177)

## Key data

### CVSS 3.1 Medium 5.4

Score published by facebook in the CVE record.

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

| Metric                 | Value     | What it means                                                                       |
| ---------------------- | --------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network   | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low       | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | Low       | A basic user account is needed.                                                     |
| User interaction       | None      | No action from any user is needed.                                                  |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                   |
| Confidentiality impact | Low       | Limited effect on the secrecy of data.                                              |
| Integrity impact       | Low       | Limited effect on the trustworthiness of data.                                      |
| Availability impact    | None      | No effect on availability.                                                          |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.13513 (13.5% probability)

Percentile

96.5%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

Meta Platforms WhatsApp Incorrect Authorization Vulnerability

Added to the catalog

Sep 2, 2025

Federal due date

Sep 23, 2025

### CISA assessment as of Aug 30, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-863](https://cwe.mitre.org/data/definitions/863.html) Incorrect Authorization

## Affected products

Products listed in the CVE record, as the CNA published them.

- Facebook WhatsApp Desktop for Mac

  - affected: 2.22.25.2 up to before 2.25.21.78
- Facebook WhatsApp Business for iOS

  - affected: 2.22.25.2 up to before 2.25.21.78
- Facebook WhatsApp for iOS

  - affected: 2.22.25.2 up to before 2.25.21.73

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [facebook.com/security/advisories/cve-2025-55177](https://www.facebook.com/security/advisories/cve-2025-55177)
- [whatsapp.com/security/advisories/2025](https://www.whatsapp.com/security/advisories/2025/)

## Timeline

1. ID reserved Aug 8, 2025
2. Record published Aug 29, 2025
3. Added to CISA KEV Sep 2, 2025
4. Record last updated Oct 7, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:04 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)