CVE-2026-6039 — Heap buffer overflow in DXF polyline import
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was tru…
Published: 2026-06-15 · CVSS: 5.4 · CVSS 4.0
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7