Threat landscape
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LibreOffice: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

WID-SEC-2026-1929 · first 16.06.2026 · updated 15.09.2026 · CVSS 6,6

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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 einen nicht näher spezifizierten Angriff durchzuführen.

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

  • einen nicht näher spezifizierten Angriff durchzuführen

Am I affected?

Affected according to the BSI:

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • RESF Rocky Linux
  • SUSE Linux
  • Open Source LibreOffice <26.2.3
  • Open Source LibreOffice <25.8.7
  • Ubuntu Linux
  • Oracle Linux

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 26.2.3
  • Open Source LibreOffice 25.8.7

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

and 7 more sources in the original advisory

CVE: CVE-2026-6039, CVE-2026-6040, CVE-2026-6045, CVE-2026-6047, CVE-2026-8356, CVE-2026-8357, CVE-2026-8358

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.

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