Heap buffer overflow in DXF polyline import_CVE-2026-6039

5.4 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P

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.

Basic Information

ID CVE-2026-6039

Source Document Fdn.

Published Jun 15, 2026 at 16:21

Affected Product

Vendor The Document Foundation

Product LibreOffice

Version 25.8

Affected Versions The Document Foundation LibreOffice 25.8
The Document Foundation LibreOffice 26.2

CWE Classification

CWE-787 CWE-197

References

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

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    "published": "2026-06-15T16:21:16.514Z",
    "modified": "2026-06-15T16:21:16.514Z",
    "type": "cve",
    "title": "Heap buffer overflow in DXF polyline import",
    "source": "Document Fdn.",
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