Adobe Reader < 26.001.21431 Multiple Vulnerabilities (APSB26-44) (macOS)

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

include('compat.inc');

if (description)
{
  script_id(306388);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/20");

  script_cve_id("CVE-2026-34622", "CVE-2026-34626");
  script_xref(name:"IAVA", value:"2026-A-0318");

  script_name(english:"Adobe Reader < 26.001.21431 Multiple Vulnerabilities (APSB26-44) (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Adobe Reader installed on the remote macOS host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Reader installed on the remote macOS host is a version prior to 26.001.21431. It is, therefore,
affected by multiple vulnerabilities.

  - Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly
    Controlled Modification of Object Prototype Attributes ('Prototype Pollution') 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-2026-34622)

  - Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly
    Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could
    result in arbitrary file system read in the context of the current user. Exploitation of this issue
    requires user interaction in that a victim must open a malicious file. (CVE-2026-34626)

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/apsb26-44.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Reader version 26.001.21431 or later.");
  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:C/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-2026-34622");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(1321);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:acrobat_reader");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

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

  script_dependencies("macosx_adobe_reader_installed.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "installed_sw/Adobe Reader");

  exit(0);
}

include('vcf_extras.inc');

get_kb_item_or_exit('Host/local_checks_enabled');
os = get_kb_item('Host/MacOSX/Version');
if (empty_or_null(os)) audit(AUDIT_OS_NOT, 'Mac OS X');

var app_info = vcf::get_app_info(app:'Adobe Reader');

# 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' : '15.7', 'max_version' : '26.001.21411', 'fixed_version' : '26.001.21431', 'track' : 'DC Continuous' }
];
vcf::adobe_acrobat::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    max_segs:3,
    severity:SECURITY_HOLE
);