CVE-2026-8356 — Stack buffer overflow in PPT presentation import
LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables we…
Published: 2026-06-15 · CVSS: 5.4 · CVSS 4.0
LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7