Mozilla Firefox < 151.0

#%NASL_MIN_LEVEL 80900
## 
# (C) Tenable, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2026-46.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(315323);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/27");

  script_cve_id(
    "CVE-2026-8945",
    "CVE-2026-8946",
    "CVE-2026-8947",
    "CVE-2026-8948",
    "CVE-2026-8949",
    "CVE-2026-8950",
    "CVE-2026-8951",
    "CVE-2026-8952",
    "CVE-2026-8953",
    "CVE-2026-8954",
    "CVE-2026-8955",
    "CVE-2026-8956",
    "CVE-2026-8957",
    "CVE-2026-8958",
    "CVE-2026-8959",
    "CVE-2026-8960",
    "CVE-2026-8961",
    "CVE-2026-8962",
    "CVE-2026-8963",
    "CVE-2026-8964",
    "CVE-2026-8965",
    "CVE-2026-8966",
    "CVE-2026-8967",
    "CVE-2026-8968",
    "CVE-2026-8969",
    "CVE-2026-8970",
    "CVE-2026-8971",
    "CVE-2026-8972",
    "CVE-2026-8973",
    "CVE-2026-8974",
    "CVE-2026-8975"
  );
  script_xref(name:"IAVA", value:"2026-A-0494");

  script_name(english:"Mozilla Firefox < 151.0");

  script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Firefox installed on the remote Windows host is prior to 151.0. It is, therefore, affected by multiple
vulnerabilities as referenced in the mfsa2026-46 advisory.

  - Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. 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-2026-8975)

  - Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox
    ESR 140.11, Thunderbird 151, and Thunderbird 140.11. (CVE-2026-8956)

  - Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
    (CVE-2026-8945)

  - Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in
    Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
    (CVE-2026-8946)

  - Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151,
    Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. (CVE-2026-8947)

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/mfsa2026-46/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 151.0 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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-8975");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-8956");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
  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:"Windows");

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

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

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "requires": [
    {
      "scope": "target",
      "match": {
        "os": "windows"
      }
    }
  ],
  "checks": [
    {
      "product": {
        "name": "Mozilla Firefox",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "fixed_version": "151.0"
        }
      ]
    }
  ]
};

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