Oracle MySQL Cluster 7.6.x < 7.6.37 (January 2026 CPU)

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

include('compat.inc');

if (description)
{
  script_id(294980);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/04");

  script_cve_id("CVE-2026-21936");

  script_name(english:"Oracle MySQL Cluster 7.6.x < 7.6.37 (January 2026 CPU)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The versions of MySQL Cluster installed on the remote host are affected by a vulnerability as referenced in the
January 2026 CPU advisory.

  - Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). Supported versions
    that are affected are 7.6.0-7.6.36, 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable
    vulnerability allows high privileged attacker with network access via multiple protocols to compromise
    MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang
    or frequently repeatable crash (complete DOS) of MySQL Cluster. (CVE-2026-21936)

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://www.oracle.com/docs/tech/security-alerts/cpujan2026csaf.json");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujan2026.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the January 2026 Oracle Critical Patch Update advisory.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:N/I:N/A:C");
  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:H/UI:N/S:U/C:N/I:N/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-2026-21936");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/01/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/22");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:mysql_cluster");
  script_end_attributes();

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

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

  script_dependencies("mysql_version.nasl", "mysql_login.nasl");
  script_require_ports("Services/mysql", 3306);

  exit(0);
}

include('mysql_version.inc');

mysql_check_version(variant:'Cluster', fixed:'7.6.37', min:'7.6', severity:SECURITY_WARNING);