Detections
Analytics

Mozilla Firefox < 126.0

high Nessus Plugin ID 196991

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Synopsis

A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 126.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2024-21 advisory.

 - Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2024-4777)

 - Multiple WebRTC threads could have claimed a newly connected audio input leading to use-after-free.
 (CVE-2024-4764)

 - A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. (CVE-2024-4367)

 - Web application manifests were stored by using an insecure MD5 hash which allowed for a hash collision to overwrite another application's manifest. This could have been exploited to run arbitrary code in another application's context. This issue only affects Firefox for Android. Other versions of Firefox are unaffected. (CVE-2024-4765)

 - Different techniques existed to obscure the fullscreen notification in Firefox for Android. These could have led to potential user confusion and spoofing attacks. This bug only affects Firefox for Android.
 Other versions of Firefox are unaffected. (CVE-2024-4766)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mozilla Firefox version 126.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2024-21/

Plugin Details

Severity: High

ID: 196991

File Name: macos_firefox_126_0.nasl

Version: 1.11

Type: local

Agent: macosx

Published: 5/14/2024

Updated: 11/20/2025

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.6

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2024-4777

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/14/2024

Vulnerability Publication Date: 5/6/2024

Reference Information

CVE: CVE-2024-10941, CVE-2024-4367, CVE-2024-4764, CVE-2024-4765, CVE-2024-4766, CVE-2024-4767, CVE-2024-4768, CVE-2024-4769, CVE-2024-4770, CVE-2024-4771, CVE-2024-4772, CVE-2024-4773, CVE-2024-4774, CVE-2024-4775, CVE-2024-4776, CVE-2024-4777, CVE-2024-4778

IAVA: 2024-A-0279-S, 2025-A-0079-S