Security Updates for Microsoft Visual Studio Products (May 2026)

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

include('compat.inc');

if (description)
{
  script_id(314647);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/15");

  script_cve_id("CVE-2026-32175", "CVE-2026-32177");
  script_xref(name:"IAVA", value:"2026-A-0463");
  script_xref(name:"IAVA", value:"2026-A-0474");
  script_xref(name:"IAVA", value:"2026-A-0460");

  script_name(english:"Security Updates for Microsoft Visual Studio Products (May 2026)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Visual Studio Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Visual Studio Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally. 
  (CVE-2026-32177)

  - A tampering vulnerability exists when .NET Core improperly handles specially crafted files. An attacker 
  who successfully exploited this vulnerability could write arbitrary files and directories to certain 
  locations on a vulnerable system. However, an attacker would have limited control over the destination of 
  the files and directories. To exploit the vulnerability, an attacker must send a specially crafted file to 
  a vulnerable system. The security update fixes the vulnerability by ensuring .NET Core properly handles 
  files. (CVE-2026-32175)

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-2026-32175");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32177");
  script_set_attribute(attribute:"see_also", value:"https://learn.microsoft.com/en-us/visualstudio/releases/2019/history");
  # https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-history
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f0f0c75d");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
    - Update to 15.9.80 for Visual Studio 2017 15.9
    - Update to 16.11.56 for Visual Studio 2019 16.11
    - Update to 17.12.20 for Visual Studio 2022 17.12
    - Update to 17.14.31 for Visual Studio 2022 17.14
    - Update to 18.5.3 for Visual Studio 2026 18.5");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:P");
  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:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-32177");

  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:visual_studio");
  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("ms_bulletin_checks_possible.nasl", "microsoft_visual_studio_installed.nbin");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible", "installed_sw/Microsoft Visual Studio", "SMB/Registry/Enumerated");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('vcf_extras_visual_studio.inc');

get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::visual_studio::get_app_info();

var constraints = [
    {'product': '2017', 'min_version': '15.0', 'max_version': '15.9.37202.19', 'fixed_display': '15.9.80'},
    {'product': '2019', 'min_version': '16.0', 'fixed_version': '16.11.37301.9', 'fixed_display': '16.11.56'},
    {'product': '2022', 'min_version': '17.12', 'fixed_version': '17.12.37301.13', 'fixed_display': '17.12.20'},
    {'product': '2022', 'min_version': '17.14', 'fixed_version': '17.14.37216.2', 'fixed_display': '17.14.31'},
    {'product': '2026', 'min_version': '18.5', 'fixed_version': '18.5.11801.241', 'fixed_display': '18.5.3'}
];

vcf::visual_studio::check_version_and_report(
  app_info: app_info,
  constraints: constraints,
  severity: SECURITY_WARNING
);