LibreOffice: Mehrere Schwachstellen
WID-SEC-2026-3738 · first 06.10.2026 · updated 23.10.2026 · CVSS 7,8
What it is about
LibreOffice ist eine leistungsfähige Office-Suite, voll kompatibel mit den Programmen anderer großer Office-Anbieter, für verbreitete Betriebssysteme wie Windows, GNU/Linux und Apple Mac OS X geeignet. LibreOffice bietet sechs Anwendungen für die Erstellung von Dokumenten und zur Datenverarbeitung: Writer, Calc, Impress, Draw, Base und Math. Ein lokaler Angreifer kann mehrere Schwachstellen in LibreOffice ausnutzen, um Informationen offenzulegen, Daten zu manipulieren und beliebigen Code auszuführen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- Informationen offenzulegen
- Daten zu manipulieren
- beliebigen Code auszuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Red Hat Enterprise Linux
- RESF Rocky Linux
- Oracle Linux
- Open Source LibreOffice <26.2.5
- Open Source LibreOffice <26.8.0
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source LibreOffice 26.2.5
- Open Source LibreOffice 26.8.0
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- LibreOffice Security Advisories vom 2026-10-05 www.libreoffice.org
- Red Hat Bugtracker 2545891 vom 2026-10-05 bugzilla.redhat.com
- EUVD-2026-92417 vom 2026-10-05 euvd.enisa.europa.eu
- Red Hat Bugtracker 2545881 vom 2026-10-05 bugzilla.redhat.com
- EUVD-2026-92418 vom 2026-10-05 euvd.enisa.europa.eu
- Red Hat Bugtracker 2545886 vom 2026-10-05 bugzilla.redhat.com
- EUVD-2026-92419 vom 2026-10-05 euvd.enisa.europa.eu
- EUVD-2026-92420 vom 2026-10-05 euvd.enisa.europa.eu
- GitHub Security Advisory GHSA-p537-j8hg-x628 vom 2026-10-05 github.com
- EUVD-2026-92421 vom 2026-10-05 euvd.enisa.europa.eu
- Red Hat Bugtracker 2545885 vom 2026-10-05 bugzilla.redhat.com
- EUVD-2026-92416 vom 2026-10-05 euvd.enisa.europa.eu
- PoC CVE-2026-63277 github.com
- Debian Security Advisory DSA-6543 vom 2026-10-05 security-tracker.debian.org
- Red Hat Security Advisory RHSA-2026:82013 vom 2026-10-13 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:82013 vom 2026-10-14 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-82013 vom 2026-10-14 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:88164 vom 2026-10-22 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:88164 vom 2026-10-23 errata.build.resf.org
CVE: CVE-2026-63267, CVE-2026-63268, CVE-2026-63269, CVE-2026-63270, CVE-2026-63277, CVE-2026-63266
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.