Adobe Acrobat < 24.001.30356 / 25.001.21288 Multiple Vulnerabilities (APSB26-26)

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

include('compat.inc');

if (description)
{
  script_id(301710);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id("CVE-2026-27220", "CVE-2026-27221", "CVE-2026-27278");
  script_xref(name:"IAVA", value:"2026-A-0220-S");

  script_name(english:"Adobe Acrobat < 24.001.30356 / 25.001.21288 Multiple Vulnerabilities (APSB26-26)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Adobe Acrobat installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Acrobat installed on the remote Windows host is a version prior to 24.001.30356 or 25.001.21288. It
is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader versions 24.001.30307, 24.001.30308, 25.001.21265 and earlier are affected by a Use After
    Free vulnerability that could result in arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2026-27220, CVE-2026-27278)

  - Acrobat Reader versions 24.001.30307, 24.001.30308, 25.001.21265 and earlier are affected by an Improper
    Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could
    leverage this vulnerability to spoof the identity of a signer. Exploitation of this issue requires user
    interaction. (CVE-2026-27221)

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://helpx.adobe.com/security/products/acrobat/apsb26-26.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Acrobat version 24.001.30356 / 25.001.21288 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/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:L/AC:L/PR:N/UI:R/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-2026-27278");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(347, 416);

  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:"2026/03/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:acrobat");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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("adobe_acrobat_installed.nasl");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Adobe Acrobat");

  exit(0);
}

include('vcf_extras.inc');

get_kb_item_or_exit('SMB/Registry/Enumerated');
var app_info = vcf::get_app_info(app:'Adobe Acrobat', win_local:TRUE);

# vcf::adobe_reader::check_version_and_report will
# properly separate tracks when checking constraints.
# x.y.30zzz = DC Classic
# x.y.20zzz = DC Continuous
var constraints = [
  { 'min_version' : '24.1', 'max_version' : '24.001.30308', 'fixed_version' : '24.001.30356', 'track' : 'DC Classic' },
  { 'min_version' : '15.7', 'max_version' : '25.001.21265', 'fixed_version' : '25.001.21288', 'track' : 'DC Continuous' }
];
vcf::adobe_acrobat::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    max_segs:3,
    severity:SECURITY_HOLE
);