CVE-2026-6039
Heap buffer overflow in DXF polyline import
- State
- Published
- Severity
- 5.4 Medium
- Published
- Jun 15, 2026
- Updated
- Jun 15, 2026
- Reserved
- Apr 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.4 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 | Document Fdn. |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LibreOfficeThe Document Foundation |
|
References
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