MGASA-2026-0259 Updated libreoffice packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Heap buffer overflow in DXF polyline import. CVE-2026-6039 Heap use-after-free in ODF number-format blank-width parsing. CVE-2026-6040 Heap buffer overflow in EMF+ gradient brush import. CVE-2026-6045 Stack buffer overflow in PPT presentation...

CVE-2026-6040

CVE-2026-6040 is a heap use‑after‑free vulnerability in LibreOffice related to parsing the blank‑width characters of an ODF number format. According to multiple connected disclosures, a memory access could occur when a position value read from the document is not checked against the length of the...

EUVD-2026-36735

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed...

Linux Distros Unpatched Vulnerability : CVE-2026-6040

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against...