Security Updates for Microsoft Office Products (July 2026) (macOS)

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

include('compat.inc');

if (description)
{
  script_id(326952);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/15");

  script_cve_id(
    "CVE-2026-47642",
    "CVE-2026-48580",
    "CVE-2026-50314",
    "CVE-2026-50387",
    "CVE-2026-50408",
    "CVE-2026-50467",
    "CVE-2026-50665",
    "CVE-2026-50675",
    "CVE-2026-50678",
    "CVE-2026-54131",
    "CVE-2026-54988",
    "CVE-2026-55018",
    "CVE-2026-55022",
    "CVE-2026-55023",
    "CVE-2026-55024",
    "CVE-2026-55025",
    "CVE-2026-55026",
    "CVE-2026-55027",
    "CVE-2026-55028",
    "CVE-2026-55029",
    "CVE-2026-55031",
    "CVE-2026-55033",
    "CVE-2026-55035",
    "CVE-2026-55036",
    "CVE-2026-55037",
    "CVE-2026-55038",
    "CVE-2026-55039",
    "CVE-2026-55041",
    "CVE-2026-55042",
    "CVE-2026-55043",
    "CVE-2026-55044",
    "CVE-2026-55045",
    "CVE-2026-55046",
    "CVE-2026-55047",
    "CVE-2026-55048",
    "CVE-2026-55049",
    "CVE-2026-55050",
    "CVE-2026-55053",
    "CVE-2026-55054",
    "CVE-2026-55055",
    "CVE-2026-55056",
    "CVE-2026-55057",
    "CVE-2026-55058",
    "CVE-2026-55120",
    "CVE-2026-55121",
    "CVE-2026-55122",
    "CVE-2026-55123",
    "CVE-2026-55124",
    "CVE-2026-55125",
    "CVE-2026-55127",
    "CVE-2026-55128",
    "CVE-2026-55129",
    "CVE-2026-55130",
    "CVE-2026-55131",
    "CVE-2026-55132",
    "CVE-2026-55133",
    "CVE-2026-55134",
    "CVE-2026-55136",
    "CVE-2026-55137",
    "CVE-2026-55138",
    "CVE-2026-55139",
    "CVE-2026-55140",
    "CVE-2026-55141",
    "CVE-2026-55142",
    "CVE-2026-55898",
    "CVE-2026-55899",
    "CVE-2026-55947",
    "CVE-2026-55948",
    "CVE-2026-55949",
    "CVE-2026-56156",
    "CVE-2026-56192",
    "CVE-2026-56193",
    "CVE-2026-56195",
    "CVE-2026-58618"
  );

  script_name(english:"Security Updates for Microsoft Office Products (July 2026) (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office product installed on the remote host is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as
referenced in the july-14-2026 advisory.

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-55045)

  - Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code
    locally. (CVE-2026-55141, CVE-2026-55899)

  - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2026-47642, CVE-2026-54131, CVE-2026-55948)

  - Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose
    information locally. (CVE-2026-48580, CVE-2026-55138)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
    locally. (CVE-2026-50408, CVE-2026-54988, CVE-2026-55046, CVE-2026-55122, CVE-2026-55898)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac#july-14-2026
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?37c7fe6c");
  script_set_attribute(attribute:"solution", value:
"Update to Office for Mac version 16.111 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/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-2026-55899");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-55045");

  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:"2026/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/15");

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

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

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

  script_dependencies("macosx_office_installed.nbin");
  script_require_keys("Host/MacOSX/Version");
  script_require_ports("installed_sw/Microsoft Outlook", "installed_sw/Microsoft Excel", "installed_sw/Microsoft Word", "installed_sw/Microsoft PowerPoint", "installed_sw/Microsoft OneNote");

  exit(0);
}

include('vcf_extras_office.inc');

var apps = make_list(
  'Microsoft Outlook',
  'Microsoft Excel',
  'Microsoft Word',
  'Microsoft PowerPoint',
  'Microsoft OneNote'
);

var app_info = vcf::microsoft::office_for_mac::get_app_info(apps:apps);

var constraints = [
  { 'fixed_version' : '16.111', 'fixed_display' : 'Version 16.111 (Build 26071325)' }
];

vcf::microsoft::office_for_mac::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);