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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-63275

Stack buffer overflow in CFF font hint handling

Description

LibreOffice can read CFF fonts, which may be embedded in documents. A stack buffer overflow existed when reading the hints of a glyph. The number of hints was checked against the wrong bound, so a glyph declaring more hints than the array can hold wrote past its end. In fixed versions the hint count is checked against the capacity the array really has.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

The Document Foundation LibreOffice

Default version status: unknown

  • 26.2 to < < 26.2.5affected

References