Detections
Analytics

Mozilla Thunderbird < 146.0

high Nessus Plugin ID 278135

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Synopsis

A mail client installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Thunderbird installed on the remote Windows host is prior to 146.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-95 advisory.

 - Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. (CVE-2025-14328, CVE-2025-14329)

 - Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. (CVE-2025-14321)

 - Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. (CVE-2025-14322)

 - Privilege escalation in the DOM: Notifications component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. (CVE-2025-14323)

 - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. (CVE-2025-14324)

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 Thunderbird version 146.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2025-95/

Plugin Details

Severity: High

ID: 278135

File Name: mozilla_thunderbird_146_0.nasl

Version: 1.2

Type: local

Agent: windows

Family: Windows

Published: 12/10/2025

Updated: 12/12/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

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-2025-14329

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:thunderbird

Required KB Items: installed_sw/Mozilla Thunderbird

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2025

Vulnerability Publication Date: 12/9/2025

Reference Information

CVE: CVE-2025-14321, CVE-2025-14322, CVE-2025-14323, CVE-2025-14324, CVE-2025-14325, CVE-2025-14326, CVE-2025-14327, CVE-2025-14328, CVE-2025-14329, CVE-2025-14330, CVE-2025-14331, CVE-2025-14332, CVE-2025-14333

IAVA: 2025-A-0895