CVE-2026-116632
Received Received - Intake

Malicious Text Injection in Firefox for iOS

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: Mozilla Corporation

Description
A malicious web page could insert arbitrary text into the FaceTime call prompt shown by iOS, potentialy allowing it to display a phishing message inside system UI. This vulnerability was fixed in Firefox for iOS 156.1.

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-26
AI Q&A
2026-10-26
EPSS Evaluated
N/A
NVD
CVE-2026-116632
EUVD
EUVD-2026-110067

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 156.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-451 The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

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Executive Summary

This vulnerability allows a malicious web page to insert arbitrary text into the FaceTime call prompt shown by iOS. This could trick users into thinking they are interacting with a legitimate system prompt when it is actually a phishing attempt displayed within the browser's UI.

Detection Guidance

This vulnerability is specific to Firefox for iOS and involves phishing messages in FaceTime call prompts. Detection would require checking the installed version of Firefox for iOS. If the version is below 156.1, the system is vulnerable.

Impact Analysis

This vulnerability could lead to phishing attacks where users are deceived into revealing sensitive information or granting permissions under false pretenses. It exploits the trust users place in system UI elements by injecting misleading messages.

Compliance Impact

This vulnerability could allow phishing messages to appear in system UI during FaceTime calls, potentially tricking users into disclosing sensitive data. This may impact compliance with GDPR (data protection) and HIPAA (privacy) by increasing the risk of unauthorized data exposure through social engineering attacks.

Mitigation Strategies

Update Firefox for iOS to version 156.1 or later immediately. This can be done through the App Store by checking for updates. Avoid visiting untrusted websites or clicking suspicious links until the update is applied.

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