Lucene search
K

Mozilla Firefox ESR < 140.6

🗓️ 09 Dec 2025 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com

Firefox ESR before 140.6 on macOS is affected by several CVEs in Netmonitor, WebRTC, CanvasWebGL, Notifications, and the JavaScript engine.

Related
Refs
Code
ReporterTitlePublishedViews
Family
GithubExploit
Exploit for Use After Free in Mozilla Firefox
2 Feb 202619:54
githubexploit
GithubExploit
Exploit for Type Confusion in Mozilla Firefox
9 Apr 202615:45
githubexploit
FreeBSD
Mozilla -- Use-after-free
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- Sandbox escape
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- Privilege escalation
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- JIT miscompilation
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- Privilege escalation
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- Privilege escalation
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- JIT miscompilation in the JavaScript Engine: JIT component
9 Dec 202500:00
freebsd
FreeBSD
Mozilla -- Same-origin policy bypass
9 Dec 202500:00
freebsd
Rows per page
#%NASL_MIN_LEVEL 80900
## 
# (C) Tenable, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2025-94.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(277975);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/26");

  script_cve_id(
    "CVE-2025-14321",
    "CVE-2025-14322",
    "CVE-2025-14323",
    "CVE-2025-14324",
    "CVE-2025-14325",
    "CVE-2025-14328",
    "CVE-2025-14329",
    "CVE-2025-14330",
    "CVE-2025-14331",
    "CVE-2025-14333"
  );
  script_xref(name:"IAVA", value:"2025-A-0894-S");

  script_name(english:"Mozilla Firefox ESR < 140.6");

  script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.6. It is, therefore, affected
by multiple vulnerabilities as referenced in the mfsa2025-94 advisory.

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

  - Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox < 146 and Firefox
    ESR < 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, and Firefox ESR < 140.6. (CVE-2025-14322)

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

  - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146,
    Firefox ESR < 115.31, and Firefox ESR < 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.");
  script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2025-94/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox ESR version 140.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-14330");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/12/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macosx_firefox_installed.nasl");
  script_require_keys("installed_sw/Mozilla Firefox ESR");

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "requires": [
    {
      "scope": "target",
      "match": {
        "os": "macos"
      }
    }
  ],
  "checks": [
    {
      "product": {
        "name": "Mozilla Firefox ESR",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "min_version": "140.0.0",
          "fixed_version": "140.6"
        }
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

26 Feb 2026 00:00Current
8.6High risk
Vulners AI Score8.6
CVSS 3.19.8
EPSS0.00103
SSVC
0