CVE-2026-6039

Description

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.

References

https://www.libreoffice.org/about-us/security/advisories/cve-2026-6039

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4