PT-2026-49262 · Document Foundation · Libreoffice

Anthropic + 1 · Published 2026-06-15 · Updated 2026-06-15 · CVE-2026-6039

NVD

CVSS v4.0

5.3

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

CWE-197

Related Identifiers

CVE-2026-6039

Affected Products

Libreoffice

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-6039 · Security Note
• https://libreoffice.org/about-us/security/advisories/cve-2026-6039 · Note