Mozilla Firefox < 157.0.1

critical Nessus Plugin ID 363128

Synopsis

A web browser installed on the remote Windows host is affected by a vulnerability.

Description

The version of Firefox installed on the remote Windows host is prior to 157.0.1. It is, therefore, affected by a vulnerability as referenced in the mfsa2026-104 advisory.

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

Solution

Upgrade to Mozilla Firefox version 157.0.1 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2026-104/

Plugin Details

Severity: Critical

ID: 363128

File Name: mozilla_firefox_157_0_1.nasl

Version: 1.3

Type: Local

Agent: windows

Family: Windows

Published: 10/6/2026

Updated: 10/9/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.57

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS Score Source: CVE-2026-106016

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2026

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-106016

IAVA: 2026-A-1076