LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.

ubuntu_linux USN-8534-1: Ubuntu 22.04 LTS / Ubuntu 24.04 LTS / Ubuntu 26.04 LTS : LibreOffice vulnerabilities (USN-8534-1)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1254:02 advisory.

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:36832 advisory.

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:36832 advisory.

    LibreOffice is an open source, community-developed office productivity suite. It includes key desktop     applications, such as a word processor, a spreadsheet, a presentation manager, a formula editor, and a     drawing program. LibreOffice replaces OpenOffice and provides a similar but enhanced and extended office     suite.

    Security Fix(es):

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:35839 advisory.

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:35839 advisory.

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:35839 advisory.

    LibreOffice is an open source, community-developed office productivity suite. It includes key desktop     applications, such as a word processor, a spreadsheet, a presentation manager, a formula editor, and a     drawing program. LibreOffice replaces OpenOffice and provides a similar but enhanced and extended office     suite.

    Security Fix(es):

    * libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation     (CVE-2026-8357)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4633 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4633-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Rene Engelhard     June 17, 2026                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libreoffice     Version        : 4:7.4.7-1+deb12u13     CVE ID         : CVE-2026-6039 CVE-2026-6045 CVE-2026-8356 CVE-2026-8357                      CVE-2026-8358

    Multiple security vulnerabilities were discovered in LibreOffice,     which could result in denial of service or potentially the execution     of arbitrary code if malformed files are opened.

    For Debian 12 bookworm, these problems have been fixed in version     4:7.4.7-1+deb12u13.

    We recommend that you upgrade your libreoffice packages.

    For the detailed security status of libreoffice please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libreoffice

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when     compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was     allocated one element too small for that worst case, so such a formula wrote one element past its end. In     fixed versions the array is sized to hold the largest possible nesting. (CVE-2026-8357)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6346 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6346-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     June 15, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : libreoffice     CVE ID         : CVE-2026-6039 CVE-2026-6040 CVE-2026-6045 CVE-2026-8356                      CVE-2026-8357 CVE-2026-8358

    Multiple security vulnerabilities were discovered in LibreOffice, which     could result in denial of service or potentially the execution of     arbitrary code if malformed files are opened.

    For the stable distribution (trixie), these problems have been fixed in     version 4:25.2.3-2+deb13u5.

    We recommend that you upgrade your libreoffice packages.

    For the detailed security status of libreoffice please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libreoffice

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
326717	MiracleLinux 8 : libreoffice-6.4.7.2-21.el8_10.ML.1 (AXSA:2026-1254:02)	Nessus	Miracle Linux Local Security Checks	medium
326263	RockyLinux 9 : libreoffice (RLSA-2026:36832)	Nessus	Rocky Linux Local Security Checks	medium
325804	RHEL 9 : libreoffice (RHSA-2026:36832)	Nessus	Red Hat Local Security Checks	medium
325503	AlmaLinux 8 : libreoffice (ALSA-2026:35839)	Nessus	Alma Linux Local Security Checks	medium
325361	RockyLinux 8 : libreoffice (RLSA-2026:35839)	Nessus	Rocky Linux Local Security Checks	medium
325206	RHEL 8 : libreoffice (RHSA-2026:35839)	Nessus	Red Hat Local Security Checks	medium
321496	Debian dla-4633 : fonts-opensymbol - security update	Nessus	Debian Local Security Checks	medium
321143	Linux Distros Unpatched Vulnerability : CVE-2026-8357	Nessus	Misc.	medium
321128	Debian dsa-6346 : fonts-opensymbol - security update	Nessus	Debian Local Security Checks	medium

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