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.
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Affected Vendors & Products
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History
Mon, 15 Jun 2026 19:30:00 +0000
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Mon, 15 Jun 2026 18:00:00 +0000
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| 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 |
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cvssV4_0
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Status: PUBLISHED
Assigner: Document Fdn.
Published:
Updated: 2026-06-15T18:11:48.806Z
Reserved: 2026-04-09T19:21:23.491Z
Link: CVE-2026-6047
Updated: 2026-06-15T18:11:37.211Z
Status : Received
Published: 2026-06-15T18:16:37.127
Modified: 2026-06-15T18:16:37.127
Link: CVE-2026-6047
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OpenCVE Enrichment
No data.