Security Updates for Microsoft SQL Server (March 2026)

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

include('compat.inc');

if (description)
{
  script_id(301981);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id("CVE-2026-21262", "CVE-2026-26115", "CVE-2026-26116");
  script_xref(name:"MSKB", value:"5077464");
  script_xref(name:"MSKB", value:"5077465");
  script_xref(name:"MSKB", value:"5077465");
  script_xref(name:"MSKB", value:"5077466");
  script_xref(name:"MSKB", value:"5077468");
  script_xref(name:"MSKB", value:"5077469");
  script_xref(name:"MSKB", value:"5077470");
  script_xref(name:"MSKB", value:"5077471");
  script_xref(name:"MSKB", value:"5077472");
  script_xref(name:"MSKB", value:"5077473");
  script_xref(name:"MSKB", value:"5077474");
  script_xref(name:"MSFT", value:"MS26-5077464");
  script_xref(name:"MSFT", value:"MS26-5077465");
  script_xref(name:"MSFT", value:"MS26-5077465");
  script_xref(name:"MSFT", value:"MS26-5077466");
  script_xref(name:"MSFT", value:"MS26-5077468");
  script_xref(name:"MSFT", value:"MS26-5077469");
  script_xref(name:"MSFT", value:"MS26-5077470");
  script_xref(name:"MSFT", value:"MS26-5077471");
  script_xref(name:"MSFT", value:"MS26-5077472");
  script_xref(name:"MSFT", value:"MS26-5077473");
  script_xref(name:"MSFT", value:"MS26-5077474");
  script_xref(name:"IAVA", value:"2026-A-0231-S");

  script_name(english:"Security Updates for Microsoft SQL Server (March 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 vulnerabilities:

  - A privilege escalation vulnerability 
    (CVE-2026-21262, CVE-2026-26115, CVE-2026-26116)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26115");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26116");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released security updates for Microsoft SQL Server.");
  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-2026-26116");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-26115");

  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:"2026/03/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sql_server");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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' : '2022',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2022.160.4003.1',
    'fixed_version'   : '2022.160.4240.4',
    'kb'              : '5077464'
  },
  {
    'product_version' : '2022',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2022.160.1000.6',
    'fixed_version'   : '2022.160.1170.5',
    'kb'              : '5077465'
  },
  {
    'product_version' : '2025',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2025.170.4006.2 ',
    'fixed_version'   : '2025.170.4020.2',
    'kb'              : '5077466'
  },
    {
    'product_version' : '2025',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2025.170.1000.7',
    'fixed_version'   : '2025.170.1105.2',
    'kb'              : '5077468'
  },
  {
    'product_version' : '2019',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2019.150.4003.23',
    'fixed_version'   : '2019.150.4460.4',
    'kb'              : '5077469'
  },
  {
    'product_version' : '2019',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2019.150.2000.5 ',
    'fixed_version'   : '2019.150.2160.4',
    'kb'              : '5077470'
  },
  {
    'product_version' : '2017',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2017.140.3006.16',
    'fixed_version'   : '2017.140.3520.4',
    'kb'              : '5077471'
  },
  {
    'product_version' : '2017',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2017.140.1000.169',
    'fixed_version'   : '2017.140.2100.4',
    'kb'              : '5077472'
  },
  {
    'product_version' : '2016',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2016.160.7000.253 ',
    'fixed_version'   : '2016.160.7075.5',
    'kb'              : '5077473'
  },
  {
    'product_version' : '2016',
    'target_hw'       : 'x64',
    'file'            : 'sqlservr.exe',
    'min_version'     : '2016.130.6300.2 ',
    'fixed_version'   : '2016.130.6475.1',
    'kb'              : '5077474'
  }
];

vcf::microsoft::mssql::check_version_and_report(
  app_info          : app_info,
  constraints       : constraints,
  bulletin          : 'MS26-03',
  severity          : SECURITY_HOLE
);