This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-63275 →
UBUNTU-CVE-2026-63275
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 h...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:20.04:LTS
libreoffice
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
libreoffice
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.3.7-0ubuntu0.22.04.13"}]}]
Ubuntu:24.04:LTS
libreoffice
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:24.2.7-0ubuntu0.24.04.7"}]}]
Ubuntu:26.04:LTS
libreoffice
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:26.2.6.3-0ubuntu0.26.04.2"}]}]
References
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report libreoffice.org
- report libreoffice.org