Security Update for Microsoft Power BI Report Server (August 2026)

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

include('compat.inc');

if (description)
{
  script_id(334623);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/11");

  script_cve_id("CVE-2026-65811");

  script_name(english:"Security Update for Microsoft Power BI Report Server (August 2026)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is missing a security update..");
  script_set_attribute(attribute:"description", value:
"The Microsoft Power BI Report Server on the remote host is missing the February 2026 security update. It is, therefore,
affected by an RCE vulnerability.

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://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65811");
  # https://learn.microsoft.com/en-us/power-bi/report-server/changelog#may-2026
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?78b5cca5");
  script_set_attribute(attribute:"solution", value:
"Upgrade Power BI Report Server to version 1.26.9682.1442 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A: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_attribute(attribute:"cvss_score_source", value:"CVE-2026-65811");
  script_cwe_id(20);

  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:"2026/08/11");

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

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

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

  script_dependencies("microsoft_power_bi_rs_win_installed.nbin");
  script_require_keys("installed_sw/Microsoft Power BI Report Server");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'Microsoft Power BI Report Server', win_local:TRUE);

vcf::check_granularity(app_info:app_info, sig_segments:4);

var constraints = [
  { 'fixed_version' : '1.26.9682.1442' }
];

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