Microsoft Edge (Chromium) < 139.0.3405.125 (CVE-2025-9478)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(258091);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/16");

  script_cve_id("CVE-2025-9478");

  script_name(english:"Microsoft Edge (Chromium) < 139.0.3405.125 (CVE-2025-9478)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an web browser installed that is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Edge installed on the remote Windows host is prior to 139.0.3405.125. It is, therefore,
affected by a vulnerability as referenced in the August 28, 2025 advisory.

  - Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially
    exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical) (CVE-2025-9478)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#august-28-2025
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fad0268e");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-9478");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Microsoft Edge version 139.0.3405.125 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:R/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-2025-9478");

  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:"2025/08/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:edge");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

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

  script_dependencies("microsoft_edge_chromium_installed.nbin", "smb_hotfixes.nasl");
  script_require_keys("installed_sw/Microsoft Edge (Chromium)", "SMB/Registry/Enumerated");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}},
    {'scope': 'target', 'match': {'os_version': '10'}}
  ],
  'checks': [
    {
      'product': {'name': 'Microsoft Edge (Chromium)', 'type': 'app'},
      'check_algorithm': 'default',
      'requires': [
        {'scope': 'install', 'not_match': {'Channel': 'extended'}}
      ],
      'constraints': [
        {'fixed_version': '139.0.3405.125'}
      ]
    }
  ]
};

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