CVE-2026-6045 — Heap buffer overflow in EMF+ gradient brush import
LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend poin…
Published: 2026-06-15 · CVSS: 5.4 · CVSS 4.0
LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small buffer was allocated and then filled as if it were large, writing past its end. In fixed versions the blend-point count is checked against the data actually available before allocating.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7