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.
History

Mon, 15 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 15 Jun 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Heap buffer overflow in OOXML text box element import
Weaknesses CWE-787
CWE-843
References
Metrics cvssV4_0

{'score': 5.4, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published:

Updated: 2026-06-15T18:11:48.806Z

Reserved: 2026-04-09T19:21:23.491Z

Link: CVE-2026-6047

cve-icon Vulnrichment

Updated: 2026-06-15T18:11:37.211Z

cve-icon NVD

Status : Received

Published: 2026-06-15T18:16:37.127

Modified: 2026-06-15T18:16:37.127

Link: CVE-2026-6047

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.