Mozilla Firefox ESR < 140.4

critical Nessus Plugin ID 270350

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Synopsis

A web browser installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Firefox ESR installed on the remote Windows host is prior to 140.4. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-83 advisory.

- Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143.
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-2025-11715)

- A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. (CVE-2025-11710)

- Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

- A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. (CVE-2025-11709)

- There was a way to change the value of JavaScript Object properties that were supposed to be non- writeable. (CVE-2025-11711)

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 140.4 or later.

Plugin Details

Severity: Critical

ID: 270350

File Name: mozilla_firefox_140_4_esr.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 10/14/2025

Updated: 11/18/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2025-11712

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-2025-11710

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: installed_sw/Mozilla Firefox ESR

Exploit Ease: No known exploits are available

Patch Publication Date: 10/14/2025

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-11708, CVE-2025-11709, CVE-2025-11710, CVE-2025-11711, CVE-2025-11712, CVE-2025-11713, CVE-2025-11714, CVE-2025-11715

IAVA: 2025-A-0744-S

Detections

Analytics