Security Updates for Microsoft Dynamics 365 (on-premises) (June 2026)

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

include('compat.inc');

if (description)
{
  script_id(320873);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/15");

  script_cve_id("CVE-2026-40371");
  script_xref(name:"MSKB", value:"5089858");
  script_xref(name:"MSFT", value:"MS26-5089858");
  script_xref(name:"IAVA", value:"2026-A-0575");

  script_name(english:"Security Updates for Microsoft Dynamics 365 (on-premises) (June 2026)");

  script_set_attribute(attribute:"synopsis", value:
"Microsoft Dynamics 365 (on-premises) is installed and is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Dynamics 365 (on-premises) is missing a security update. It is, therefore, affected by a vulnerability:

  - Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows
    an authorized attacker to elevate privileges over a network. (CVE-2026-40371)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://support.microsoft.com/en-us/topic/service-update-1-45-for-microsoft-dynamics-crm-on-premises-9-1-63e24664-3193-4182-a110-934ee929ce93
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3547413f");
  # https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40371
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?938f6ee4");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a security update, please review the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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-2026-40371");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(280);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:dynamics_365");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

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

  script_dependencies("microsoft_dynamics_365_detect.nbin");
  script_require_keys("installed_sw/Microsoft Dynamics 365 Server");
  script_require_ports(139, 445);

  exit(0);
}

include('vcf.inc');

var app = 'Microsoft Dynamics 365 Server';

var app_info = vcf::get_app_info(app:app, win_local:TRUE);

var constraints = [
  { 'kb':'5089858', 'channel':'MSI', 'fixed_version': '9.1.45.11', 'sp' : 0}
];

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