CVE-2026-63272 — Heap buffer overflow in WMF text record import
LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance width…
Published: 2026-09-22 · CVSS: 5.4 · CVSS 4.0
LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7