{"id":"DEBIAN-CVE-2026-6047","details":"LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.","modified":"2026-09-14T17:03:25.415891782Z","published":"2026-06-15T18:16:37.127Z","upstream":["CVE-2026-6047"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-6047"}],"affected":[{"package":{"name":"libreoffice","ecosystem":"Debian:14","purl":"pkg:deb/debian/libreoffice?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:26.2.3.2-2"}]}],"versions":["4:25.2.3-2","4:25.8.0-1","4:25.8.0-1~bpo13+1","4:25.8.0~alpha1-1","4:25.8.0~alpha1-2","4:25.8.0~beta1-1","4:25.8.0~rc1-1","4:25.8.0~rc1-2","4:25.8.0~rc2-1","4:25.8.0~rc2-2","4:25.8.0~rc3-1","4:25.8.0~rc4-1","4:25.8.0~rc4-2","4:25.8.1-1","4:25.8.1-1~bpo13+1","4:25.8.1~rc1-1","4:25.8.2-1","4:25.8.2-2","4:25.8.2-3","4:25.8.2-3~bpo13+1","4:25.8.2~rc1-1","4:25.8.2~rc2-1","4:25.8.3-1","4:25.8.3-1+ports","4:25.8.3-1~bpo13+1","4:25.8.3~rc1-1","4:25.8.3~rc2-1","4:25.8.4-1","4:25.8.4-1~bpo13+1","4:26.2.0-1","4:26.2.0-1~bpo13+1","4:26.2.0~alpha1-1","4:26.2.0~alpha1-2","4:26.2.0~alpha1-3","4:26.2.0~beta1-1","4:26.2.0~rc1-1","4:26.2.0~rc2-1","4:26.2.0~rc3-1","4:26.2.1-1","4:26.2.1-1~bpo13+1","4:26.2.1~rc1-1","4:26.2.1~rc2-1","4:26.2.2.1-1","4:26.2.2.1-2","4:26.2.2.2-1","4:26.2.2.2-2","4:26.2.2.2-3","4:26.2.2.2-3~bpo13+1","4:26.2.3.1-1","4:26.2.3.2-1","4:26.2.3.2-2~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6047.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}