Mozilla Firefox ESR < 115.43

high Nessus Plugin ID 365310

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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 ESR installed on the remote macOS or Mac OS X host is prior to 115.43. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-107 advisory.

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 ESR version 115.43 or later.

Plugin Details

Severity: High

ID: 365310

File Name: macos_firefox_115_43_esr.nasl

Version: 1.5

Type: Local

Agent: macosx

Family: MacOS X Local Security Checks

Published: 10/13/2026

Updated: 10/26/2026

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: 6.3

Percentile: 96.11

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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:P/RL:O/RC:C

CVSS Score Source: CVE-2026-109730

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: installed_sw/Mozilla Firefox ESR

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/13/2026

Vulnerability Publication Date: 10/13/2026

Reference Information

CVE: CVE-2026-109706, CVE-2026-109710, CVE-2026-109712, CVE-2026-109715, CVE-2026-109716, CVE-2026-109718, CVE-2026-109719, CVE-2026-109722, CVE-2026-109725, CVE-2026-109726, CVE-2026-109727, CVE-2026-109728, CVE-2026-109729, CVE-2026-109730, CVE-2026-109732, CVE-2026-109733, CVE-2026-109753

IAVA: 2026-A-1136

Detections

Analytics