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Linux Distros Unpatched Vulnerability : CVE-2025-12207

🗓️ 28 Oct 2025 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 2 Views

Unpatched Kamailio 5.5 flaw enables local null pointer dereference (CVE-2025-12207).

Related
Refs
Code
ReporterTitlePublishedViews
Family
Circl		CVE-2025-12207
27 Oct 202519:03
–circl
CNNVD		Kamailio 代码问题漏洞
27 Oct 202500:00
–cnnvd
CVE		CVE-2025-12207
27 Oct 202502:32
–cve
Cvelist		CVE-2025-12207 Kamailio Grammar Rule cfg.y yyerror_at null pointer dereference
27 Oct 202502:32
–cvelist
Debian CVE		CVE-2025-12207
27 Oct 202502:32
–debiancve
EUVD		EUVD-2025-36068
27 Oct 202502:32
–euvd
NVD		CVE-2025-12207
27 Oct 202503:15
–nvd
OSV		DEBIAN-CVE-2025-12207
27 Oct 202503:15
–osv
OSV		UBUNTU-CVE-2025-12207
27 Oct 202503:15
–osv
Positive Technologies		PT-2025-43867
27 Oct 202500:00
–ptsecurity
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(271828);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/02");

  script_cve_id("CVE-2025-12207");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2025-12207");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - A vulnerability has been found in Kamailio 5.5. This affects the function yyerror_at of the file
    src/core/cfg.y of the component Grammar Rule Handler. Such manipulation leads to null pointer dereference.
    The attack needs to be performed locally. The exploit has been disclosed to the public and may be used.
    The actual existence of this vulnerability is currently in question. This attack requires manipulating
    config files which might not be a realistic scenario in many cases. The vendor was contacted early about
    this disclosure but did not respond in any way. (CVE-2025-12207)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-12207");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2025-12207");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:U/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-12207");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kamailio");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kamailio");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-25.04", "Host/OS/Ubuntu Linux-25.10", "Host/OS/Ubuntu Linux-26.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mono-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-extra-modules"},
          {"reference": "kamailio-geoip-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mono-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-lwsc-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-nats-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-tls-wolfssl-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-lwsc-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-tls-wolfssl-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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02 Jun 2026 00:00Current
5.2Medium risk
Vulners AI Score5.2
CVSS 3.13.3 - 5.5
CVSS 21.7
CVSS 44.8
CVSS 33.3
EPSS0.00031
SSVC
kamailio fivelocal exploitnull pointerconfiguration fileyyerror atcve-2025-12207
2