Adobe Reader < 26.002.21901 Multiple Vulnerabilities (APSB26-141)

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

include('compat.inc');

if (description)
{
  script_id(343841);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/08");

  script_cve_id(
    "CVE-2026-79907",
    "CVE-2026-79908",
    "CVE-2026-79909",
    "CVE-2026-79910",
    "CVE-2026-80159",
    "CVE-2026-80160",
    "CVE-2026-80161",
    "CVE-2026-80162",
    "CVE-2026-81973",
    "CVE-2026-81975",
    "CVE-2026-81976",
    "CVE-2026-81977",
    "CVE-2026-81978",
    "CVE-2026-81979",
    "CVE-2026-81980",
    "CVE-2026-81981",
    "CVE-2026-81982",
    "CVE-2026-81983",
    "CVE-2026-81984",
    "CVE-2026-81985",
    "CVE-2026-81986",
    "CVE-2026-81987",
    "CVE-2026-81988",
    "CVE-2026-81989",
    "CVE-2026-81990",
    "CVE-2026-81991",
    "CVE-2026-81992",
    "CVE-2026-81993",
    "CVE-2026-81994",
    "CVE-2026-81996",
    "CVE-2026-81997",
    "CVE-2026-82001"
  );

  script_name(english:"Adobe Reader < 26.002.21901 Multiple Vulnerabilities (APSB26-141)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Adobe Reader installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Reader installed on the remote Windows host is a version prior to 26.002.21901. It is, therefore,
affected by multiple vulnerabilities.

  - Heap-based Buffer Overflow (CWE-122) potentially leading to Arbitrary code execution (CVE-2026-81992)

  - Incorrect Authorization (CWE-863) potentially leading to Privilege escalation (CVE-2026-81996)

  - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
    potentially leading to Arbitrary file system read (CVE-2026-81994)

  - Out-of-bounds Write (CWE-787) potentially leading to Arbitrary code execution (CVE-2026-79908,
    CVE-2026-81979, CVE-2026-81980, CVE-2026-81981, CVE-2026-81983)

  - Double Free (CWE-415) potentially leading to Arbitrary code execution (CVE-2026-79907)

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/apsb26-141.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Reader version 26.002.21901 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:L/UI:N/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-2026-81992");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-81996");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(122, 125, 1321, 190, 191, 400, 415, 416, 426, 787, 843, 863);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:acrobat_reader");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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_reader_installed.nasl");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Adobe Reader");

  exit(0);
}

include('vcf_extras.inc');

get_kb_item_or_exit('SMB/Registry/Enumerated');
var app_info = vcf::get_app_info(app:'Adobe Reader', 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' : '15.7', 'max_version' : '26.002.21900', 'fixed_version' : '26.002.21901', 'track' : 'DC Continuous' }
];
vcf::adobe_acrobat::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    max_segs:3,
    severity:SECURITY_HOLE
);