Detections
Analytics

Mozilla Firefox < 143.0.3

high Nessus Plugin ID 266290

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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 143.0.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-80 advisory.

 - Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143.0.3. (CVE-2025-11152)

 - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 143.0.3.
 (CVE-2025-11153)

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 143.0.3 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2025-80/

Plugin Details

Severity: High

ID: 266290

File Name: macos_firefox_143_0_3.nasl

Version: 1.4

Type: local

Agent: macosx

Published: 9/30/2025

Updated: 11/18/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-11153

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2025

Vulnerability Publication Date: 9/30/2025

Reference Information

CVE: CVE-2025-11152, CVE-2025-11153

IAVA: 2025-A-0715-S