CVE-2026-63276 | BDVDB-2026-377672 Detail
The Document FoundationLibreOffice
Description#
LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they still fit, so a glyph emitting many operators wrote past the end of the buffer. In fixed versions the remaining capacity is tracked and the conversion stops when it is used up.
Impact#
CAPEC-44 Overflow Binary Resource File
Weaknesses#
- CWE-787 Out-of-bounds Write
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.