VULNERABILITY INTELLIGENCE
CVE-2026-6039
CVSS score5.4 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-06-15
Last modified2026-10-25
CVSS vectorCVSS: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.
Weakness classification
- CWE-197: Numeric Truncation Error
- CWE-787: Out-of-bounds Write