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Linux Distros Unpatched Vulnerability : CVE-2026-63272

🗓️ 23 Sep 2026 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 3 Views

Heap buffer overflow in LibreOffice during WMF graphics import allows remote code execution.

Related
Refs
Code
ReporterTitlePublishedViews
Family
circl
Circl		CVE-2026-63272
23 Sep 202611:39
–circl
cve
CVE		CVE-2026-63272
22 Sep 202611:10
–cve
cvelist
Cvelist		CVE-2026-63272 Heap buffer overflow in WMF text record import
22 Sep 202611:10
–cvelist
debian
Debian		[SECURITY] [DSA 6512-1] libreoffice security update
24 Sep 202618:46
–debian
debiancve
Debian CVE		CVE-2026-63272
22 Sep 202611:10
–debiancve
nessus
Tenable Nessus		Debian dsa-6512 : fonts-opensymbol - security update
24 Sep 202600:00
–nessus
euvd
EUVD		EUVD-2026-84352
22 Sep 202611:10
–euvd
kitploit
Kitploit		Anthropic-Credited-CVEs — Updated!
3 Sep 202601:25
–kitploit
nvd
NVD		CVE-2026-63272
22 Sep 202612:17
–nvd
osv
OSV		DEBIAN-CVE-2026-63272
22 Sep 202612:17
–osv
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(349165);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/24");

  script_cve_id("CVE-2026-63272");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-63272");

  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.

  - LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed
    when importing a text record that carries its own character advance widths. The count of advance values
    and the length of the text were read separately from the file and were not required to agree, so drawing
    the text walked the advance array by character position and ran past its end when the array was the
    shorter of the two. In fixed versions an advance array shorter than its text is ignored. (CVE-2026-63272)

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-2026-63272");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-63272");
  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:N/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-63272");

  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:"2026/09/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libreoffice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libreoffice");
  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) 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-12", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "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": "libofficebean-java"},
          {"reference": "libreoffice"},
          {"reference": "libreoffice-base"},
          {"reference": "libreoffice-base-core"},
          {"reference": "libreoffice-base-drivers"},
          {"reference": "libreoffice-base-nogui"},
          {"reference": "libreoffice-calc"},
          {"reference": "libreoffice-calc-nogui"},
          {"reference": "libreoffice-common"},
          {"reference": "libreoffice-core"},
          {"reference": "libreoffice-core-nogui"},
          {"reference": "libreoffice-draw"},
          {"reference": "libreoffice-draw-nogui"},
          {"reference": "libreoffice-gnome"},
          {"reference": "libreoffice-help-common"},
          {"reference": "libreoffice-impress"},
          {"reference": "libreoffice-impress-nogui"},
          {"reference": "libreoffice-java-common"},
          {"reference": "libreoffice-l10n-af"},
          {"reference": "libreoffice-l10n-am"},
          {"reference": "libreoffice-l10n-ar"},
          {"reference": "libreoffice-l10n-as"},
          {"reference": "libreoffice-l10n-in"},
          {"reference": "libreoffice-l10n-za"},
          {"reference": "libreoffice-math"},
          {"reference": "libreoffice-math-nogui"},
          {"reference": "libreoffice-nogui"},
          {"reference": "libreoffice-script-provider-bsh"},
          {"reference": "libreoffice-script-provider-js"},
          {"reference": "libreoffice-script-provider-python"},
          {"reference": "libreoffice-sdbc-hsqldb"},
          {"reference": "libreoffice-sdbc-mysql"},
          {"reference": "libreoffice-style-breeze"},
          {"reference": "libreoffice-style-colibre"},
          {"reference": "libreoffice-style-elementary"},
          {"reference": "libreoffice-style-karasa-jaga"},
          {"reference": "libreoffice-style-sifr"},
          {"reference": "libreoffice-style-sukapura"},
          {"reference": "libreoffice-writer"},
          {"reference": "libreoffice-writer-nogui"},
          {"reference": "python3-access2base"},
          {"reference": "python3-uno"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "libofficebean-java"},
          {"reference": "libreoffice"},
          {"reference": "libreoffice-base"},
          {"reference": "libreoffice-base-core"},
          {"reference": "libreoffice-base-drivers"},
          {"reference": "libreoffice-base-nogui"},
          {"reference": "libreoffice-calc"},
          {"reference": "libreoffice-calc-nogui"},
          {"reference": "libreoffice-common"},
          {"reference": "libreoffice-core"},
          {"reference": "libreoffice-core-nogui"},
          {"reference": "libreoffice-draw"},
          {"reference": "libreoffice-draw-nogui"},
          {"reference": "libreoffice-gnome"},
          {"reference": "libreoffice-help-common"},
          {"reference": "libreoffice-impress"},
          {"reference": "libreoffice-impress-nogui"},
          {"reference": "libreoffice-java-common"},
          {"reference": "libreoffice-l10n-af"},
          {"reference": "libreoffice-l10n-am"},
          {"reference": "libreoffice-l10n-ar"},
          {"reference": "libreoffice-l10n-in"},
          {"reference": "libreoffice-l10n-za"},
          {"reference": "libreoffice-math"},
          {"reference": "libreoffice-math-nogui"},
          {"reference": "libreoffice-officebean"},
          {"reference": "libreoffice-script-provider-bsh"},
          {"reference": "libreoffice-script-provider-js"},
          {"reference": "libreoffice-script-provider-python"},
          {"reference": "libreoffice-sdbc-hsqldb"},
          {"reference": "libreoffice-sdbc-mysql"},
          {"reference": "libreoffice-style-breeze"},
          {"reference": "libreoffice-style-colibre"},
          {"reference": "libreoffice-style-elementary"},
          {"reference": "libreoffice-style-karasa-jaga"},
          {"reference": "libreoffice-style-sifr"},
          {"reference": "libreoffice-style-tango"},
          {"reference": "libreoffice-writer"},
          {"reference": "libreoffice-writer-nogui"},
          {"reference": "libunoil-java"},
          {"reference": "python3-access2base"},
          {"reference": "python3-uno"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "libofficebean-java"},
          {"reference": "libreoffice"},
          {"reference": "libreoffice-base"},
          {"reference": "libreoffice-base-core"},
          {"reference": "libreoffice-base-drivers"},
          {"reference": "libreoffice-base-nogui"},
          {"reference": "libreoffice-calc"},
          {"reference": "libreoffice-calc-nogui"},
          {"reference": "libreoffice-common"},
          {"reference": "libreoffice-core"},
          {"reference": "libreoffice-core-nogui"},
          {"reference": "libreoffice-draw"},
          {"reference": "libreoffice-draw-nogui"},
          {"reference": "libreoffice-gnome"},
          {"reference": "libreoffice-help-common"},
          {"reference": "libreoffice-impress"},
          {"reference": "libreoffice-impress-nogui"},
          {"reference": "libreoffice-java-common"},
          {"reference": "libreoffice-l10n-af"},
          {"reference": "libreoffice-l10n-am"},
          {"reference": "libreoffice-l10n-ar"},
          {"reference": "libreoffice-l10n-in"},
          {"reference": "libreoffice-l10n-za"},
          {"reference": "libreoffice-math"},
          {"reference": "libreoffice-math-nogui"},
          {"reference": "libreoffice-nogui"},
          {"reference": "libreoffice-script-provider-bsh"},
          {"reference": "libreoffice-script-provider-js"},
          {"reference": "libreoffice-script-provider-python"},
          {"reference": "libreoffice-sdbc-hsqldb"},
          {"reference": "libreoffice-sdbc-mysql"},
          {"reference": "libreoffice-style-breeze"},
          {"reference": "libreoffice-style-colibre"},
          {"reference": "libreoffice-style-elementary"},
          {"reference": "libreoffice-style-karasa-jaga"},
          {"reference": "libreoffice-style-sifr"},
          {"reference": "libreoffice-style-sukapura"},
          {"reference": "libreoffice-style-yaru"},
          {"reference": "libreoffice-writer"},
          {"reference": "libreoffice-writer-nogui"},
          {"reference": "python3-access2base"},
          {"reference": "python3-uno"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "libofficebean-java"},
          {"reference": "libreoffice"},
          {"reference": "libreoffice-base"},
          {"reference": "libreoffice-base-core"},
          {"reference": "libreoffice-base-drivers"},
          {"reference": "libreoffice-base-nogui"},
          {"reference": "libreoffice-calc"},
          {"reference": "libreoffice-calc-nogui"},
          {"reference": "libreoffice-common"},
          {"reference": "libreoffice-core"},
          {"reference": "libreoffice-core-nogui"},
          {"reference": "libreoffice-draw"},
          {"reference": "libreoffice-draw-nogui"},
          {"reference": "libreoffice-gnome"},
          {"reference": "libreoffice-help-common"},
          {"reference": "libreoffice-impress"},
          {"reference": "libreoffice-impress-nogui"},
          {"reference": "libreoffice-java-common"},
          {"reference": "libreoffice-l10n-in"},
          {"reference": "libreoffice-l10n-za"},
          {"reference": "libreoffice-math"},
          {"reference": "libreoffice-math-nogui"},
          {"reference": "libreoffice-nogui"},
          {"reference": "libreoffice-script-provider-bsh"},
          {"reference": "libreoffice-script-provider-js"},
          {"reference": "libreoffice-script-provider-python"},
          {"reference": "libreoffice-sdbc-hsqldb"},
          {"reference": "libreoffice-sdbc-mysql"},
          {"reference": "libreoffice-style-breeze"},
          {"reference": "libreoffice-style-colibre"},
          {"reference": "libreoffice-style-elementary"},
          {"reference": "libreoffice-style-karasa-jaga"},
          {"reference": "libreoffice-style-sifr"},
          {"reference": "libreoffice-style-sukapura"},
          {"reference": "libreoffice-style-yaru"},
          {"reference": "libreoffice-uiconfig-common"},
          {"reference": "libreoffice-writer"},
          {"reference": "libreoffice-writer-nogui"},
          {"reference": "python3-access2base"},
          {"reference": "python3-scriptforge"},
          {"reference": "python3-uno"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "libofficebean-java"},
          {"reference": "libreoffice"},
          {"reference": "libreoffice-base"},
          {"reference": "libreoffice-base-core"},
          {"reference": "libreoffice-base-drivers"},
          {"reference": "libreoffice-base-nogui"},
          {"reference": "libreoffice-calc"},
          {"reference": "libreoffice-calc-nogui"},
          {"reference": "libreoffice-common"},
          {"reference": "libreoffice-core"},
          {"reference": "libreoffice-core-nogui"},
          {"reference": "libreoffice-draw"},
          {"reference": "libreoffice-draw-nogui"},
          {"reference": "libreoffice-gnome"},
          {"reference": "libreoffice-help-common"},
          {"reference": "libreoffice-impress"},
          {"reference": "libreoffice-impress-nogui"},
          {"reference": "libreoffice-java-common"},
          {"reference": "libreoffice-l10n-in"},
          {"reference": "libreoffice-l10n-za"},
          {"reference": "libreoffice-math"},
          {"reference": "libreoffice-math-nogui"},
          {"reference": "libreoffice-nogui"},
          {"reference": "libreoffice-script-provider-bsh"},
          {"reference": "libreoffice-script-provider-js"},
          {"reference": "libreoffice-script-provider-python"},
          {"reference": "libreoffice-sdbc-hsqldb"},
          {"reference": "libreoffice-sdbc-mysql"},
          {"reference": "libreoffice-style-breeze"},
          {"reference": "libreoffice-style-colibre"},
          {"reference": "libreoffice-style-elementary"},
          {"reference": "libreoffice-style-karasa-jaga"},
          {"reference": "libreoffice-style-sifr"},
          {"reference": "libreoffice-style-sukapura"},
          {"reference": "libreoffice-style-yaru"},
          {"reference": "libreoffice-uiconfig-common"},
          {"reference": "libreoffice-writer"},
          {"reference": "libreoffice-writer-nogui"},
          {"reference": "python3-access2base"},
          {"reference": "python3-scriptforge"},
          {"reference": "python3-uno"}
        ]
      }
    ]
  }
};

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 third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

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_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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24 Sep 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 46.9
EPSS0.00167
SSVC
LibreOfficeheap buffer overflowWMF graphicsLinuxUnix
3