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

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

include('compat.inc');

if (description)
{
  script_id(334691);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/12");

  script_cve_id(
    "CVE-2026-58651",
    "CVE-2026-62804",
    "CVE-2026-62842",
    "CVE-2026-63513",
    "CVE-2026-63515",
    "CVE-2026-63517",
    "CVE-2026-63518",
    "CVE-2026-63519",
    "CVE-2026-63524",
    "CVE-2026-63526",
    "CVE-2026-63527",
    "CVE-2026-63528",
    "CVE-2026-63530",
    "CVE-2026-63531",
    "CVE-2026-63532",
    "CVE-2026-63533",
    "CVE-2026-64898",
    "CVE-2026-64899",
    "CVE-2026-64903",
    "CVE-2026-64904",
    "CVE-2026-64905",
    "CVE-2026-64907",
    "CVE-2026-64909",
    "CVE-2026-64910",
    "CVE-2026-64911",
    "CVE-2026-64915",
    "CVE-2026-64917",
    "CVE-2026-65657",
    "CVE-2026-65661",
    "CVE-2026-65664",
    "CVE-2026-65807",
    "CVE-2026-66807",
    "CVE-2026-66809",
    "CVE-2026-66810",
    "CVE-2026-68793",
    "CVE-2026-68794",
    "CVE-2026-68795",
    "CVE-2026-68796",
    "CVE-2026-68797",
    "CVE-2026-68798",
    "CVE-2026-68799",
    "CVE-2026-68800",
    "CVE-2026-68801",
    "CVE-2026-68802",
    "CVE-2026-68803",
    "CVE-2026-68804",
    "CVE-2026-68805",
    "CVE-2026-68806",
    "CVE-2026-68807",
    "CVE-2026-68808",
    "CVE-2026-68809",
    "CVE-2026-68810",
    "CVE-2026-68811",
    "CVE-2026-68812",
    "CVE-2026-68813",
    "CVE-2026-68814",
    "CVE-2026-68815",
    "CVE-2026-68816",
    "CVE-2026-68817",
    "CVE-2026-68818",
    "CVE-2026-70310",
    "CVE-2026-70311",
    "CVE-2026-70312",
    "CVE-2026-70313",
    "CVE-2026-70314",
    "CVE-2026-70315",
    "CVE-2026-70316",
    "CVE-2026-70317",
    "CVE-2026-70318",
    "CVE-2026-70319",
    "CVE-2026-70320",
    "CVE-2026-70322",
    "CVE-2026-70323",
    "CVE-2026-70325",
    "CVE-2026-70327",
    "CVE-2026-70328"
  );

  script_name(english:"Security Updates for Microsoft Office Products (August 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 august-11-2026 advisory.

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2026-70311)

  - Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an
    unauthorized attacker to execute code over a network. (CVE-2026-65807)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2026-68793, CVE-2026-68814)

  - Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code
    locally. (CVE-2026-68794, CVE-2026-68796, CVE-2026-68798, CVE-2026-68800, CVE-2026-68801, CVE-2026-68805,
    CVE-2026-68807, CVE-2026-68812, CVE-2026-68815)

  - Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code
    locally. (CVE-2026-68795, CVE-2026-68816, CVE-2026-68817)

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#august-11-2026
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b7c4e2c5");
  script_set_attribute(attribute:"solution", value:
"Update to Office for Mac version 16.112 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:L/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-2026-65807");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-70311");

  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:"2026/08/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/12");

  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' : '16.112', 'fixed_display' : 'Version 16.112 (Build 26081010)' }
];

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