CVE-2026-6039

CVE-2026-6039 affects LibreOffice DXF import: a heap buffer overflow occurs when importing a DXF polyline with a point count that exceeds 16-bit during buffer sizing, while the full count is used to fill the buffer. This mismatch allows writing past the end of the buffer. In fixed versions, such ...

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 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...