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Stack buffer overflow in CFF font hint handling

CVSS 4.0 5.4 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-63275

Published

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.

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CVE-2026-63275 · CVE overview and exploitation status

cve-program · CVE-2026-63275

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Sources read 13 Nov 03:01 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current