Palo Alto Networks PAN-OS 10.2.x / 11.1.x / 11.2.x / 12.1.x Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(314452);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/15");

  script_cve_id("CVE-2026-0264");
  script_xref(name:"IAVA", value:"2026-A-0453");

  script_name(english:"Palo Alto Networks PAN-OS 10.2.x / 11.1.x / 11.2.x / 12.1.x Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote PAN-OS host is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto Networks PAN-OS running on the remote host is a vulnerable version of 10.2.x, 11.1.x, 11.2.x,
or 12.1.x. It is, therefore, affected by a vulnerability.

    A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS
    Software allows an unauthenticated attacker with network access to cause a denial of service (DoS)
    condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code
    by sending specially crafted network traffic (PA-Series hardware only).


    Panorama, Cloud NGFW, and Prisma Access are not impacted by this vulnerability.

Tenable has extracted the preceding description block directly from the PAN-OS security advisory.

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://security.paloaltonetworks.com/CVE-2026-0264");
  script_set_attribute(attribute:"solution", value:
"Upgrade to a fixed version");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/UI:N/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:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/AU:Y/R:U/V:C/RE:H/U:Red");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-0264");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(122);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/13");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:paloaltonetworks:pan-os");
  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:"Palo Alto Local Security Checks");

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

  script_dependencies("palo_alto_version.nbin");
  script_require_keys("Host/Palo_Alto/Firewall/Version", "Host/Palo_Alto/Firewall/Full_Version", "Host/Palo_Alto/Firewall/Source", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

vcf::palo_alto::initialize();

var app_name = 'Palo Alto Networks PAN-OS';

var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/Palo_Alto/Firewall/Full_Version', kb_source:'Host/Palo_Alto/Firewall/Source');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var constraints = [
  { 'min_version' : '10.2.7', 'fixed_version' : '10.2.7-h34' },
  { 'min_version' : '10.2.10', 'fixed_version' : '10.2.10-h36' },
  { 'min_version' : '10.2.13', 'fixed_version' : '10.2.13-h21' },
  { 'min_version' : '10.2.16', 'fixed_version' : '10.2.16-h7' },
  { 'min_version' : '10.2.18', 'fixed_version' : '10.2.18-h6' },
  { 'min_version' : '11.1.4', 'fixed_version' : '11.1.4-h33' },
  { 'min_version' : '11.1.6', 'fixed_version' : '11.1.6-h32' },
  { 'min_version' : '11.1.7', 'fixed_version' : '11.1.7-h6' },
  { 'min_version' : '11.1.10', 'fixed_version' : '11.1.10-h25' },
  { 'min_version' : '11.1.13', 'fixed_version' : '11.1.13-h5', 'fixed_display' : '11.1.13-h5 / 11.1.15' },
  { 'min_version' : '11.2.4', 'fixed_version' : '11.2.4-h17' },
  { 'min_version' : '11.2.7', 'fixed_version' : '11.2.7-h13' },
  { 'min_version' : '11.2.10', 'fixed_version' : '11.2.10-h6', 'fixed_display' : '11.2.10-h6 / 11.2.12' },
  { 'min_version' : '12.1.4', 'fixed_version' : '12.1.4-h5', 'fixed_display' : '12.1.4-h5 / 12.1.7' }
];

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