Security Updates for Microsoft SQL Server (May 2026)

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

include('compat.inc');

if (description)
{
  script_id(314668);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/15");

  script_cve_id("CVE-2026-40370");
  script_xref(name:"MSKB", value:"5089270");
  script_xref(name:"MSKB", value:"5089271");
  script_xref(name:"MSKB", value:"5089899");
  script_xref(name:"MSKB", value:"5089900");
  script_xref(name:"MSKB", value:"5090347");
  script_xref(name:"MSKB", value:"5090354");
  script_xref(name:"MSKB", value:"5090407");
  script_xref(name:"MSKB", value:"5090408");
  script_xref(name:"MSKB", value:"5091158");
  script_xref(name:"MSKB", value:"5091223");
  script_xref(name:"MSFT", value:"MS26-5089270");
  script_xref(name:"MSFT", value:"MS26-5089271");
  script_xref(name:"MSFT", value:"MS26-5089899");
  script_xref(name:"MSFT", value:"MS26-5089900");
  script_xref(name:"MSFT", value:"MS26-5090347");
  script_xref(name:"MSFT", value:"MS26-5090354");
  script_xref(name:"MSFT", value:"MS26-5090407");
  script_xref(name:"MSFT", value:"MS26-5090408");
  script_xref(name:"MSFT", value:"MS26-5091158");
  script_xref(name:"MSFT", value:"MS26-5091223");
  script_xref(name:"IAVA", value:"2026-A-0462");

  script_name(english:"Security Updates for Microsoft SQL Server (May 2026)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft SQL Server installation on the remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft SQL Server installation on the remote host is missing a security update. It is, therefore,
affected by the following vulnerability:

  - External control of file name or path in SQL Server allows an authorized attacker to execute code over
    a network. (CVE-2026-40370)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5089270");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5089271");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5089899");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5089900");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5090347");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5090354");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5090407");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5090408");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5091158");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5091223");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
  -KB5089270
  -KB5089271
  -KB5089899
  -KB5089900
  -KB5090347
  -KB5090354
  -KB5090407
  -KB5090408
  -KB5091158
  -KB5091223");
  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-2026-40370");

  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:"2026/05/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sql_server");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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("smb_hotfixes.nasl", "mssql_version.nasl", "smb_enum_services.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, 1433, "Services/mssql", "Host/patch_management_checks");

  exit(0);
}

include('vcf_extras_microsoft.inc');

var app_info = vcf::microsoft::mssql::get_app_info();

var constraints = [
  {
    'product_version' : '2016',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2016.130.6300.2',
    'fixed_version'   : '2016.130.6490.1',
    'kb'              : '5089270'
  },
  {
    'product_version' : '2016',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2016.130.7000.253',
    'fixed_version'   : '2016.130.7085.1',
    'kb'              : '5089271'
  },
  {
    'product_version' : '2017',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2017.140.1000.169',
    'fixed_version'   : '2017.140.2110.2',
    'kb'              : '5089899'
  },
  {
    'product_version' : '2017',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2017.140.3006.16',
    'fixed_version'   : '2017.140.3530.2',
    'kb'              : '5089900'
  },
  {
    'product_version' : '2019',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2019.150.2000.5',
    'fixed_version'   : '2019.150.2170.1',
    'kb'              : '5090347'
  },
  {
    'product_version' : '2019',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2019.150.4003.23',
    'fixed_version'   : '2019.150.4470.1',
    'kb'              : '5090354'
  },
  {
    'product_version' : '2022',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2022.160.1000.6',
    'fixed_version'   : '2022.160.1180.1',
    'kb'              : '5090407'
  },
  {
    'product_version' : '2022',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2022.160.4003.1',
    'fixed_version'   : '2022.160.4252.3',
    'kb'              : '5090408'
  },
  {
    'product_version' : '2025',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2025.170.1000.7',
    'fixed_version'   : '2025.170.1115.1',
    'kb'              : '5091158'
  },
  {
    'product_version' : '2025',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2025.170.4006.2',
    'fixed_version'   : '2025.170.4040.1',
    'kb'              : '5091223'
  }
];

vcf::microsoft::mssql::check_version_and_report(
  app_info          : app_info,
  constraints       : constraints,
  bulletin          : 'MS26-05',
  severity          : SECURITY_HOLE
);