CVE-2026-8356 Stack buffer overflow in PPT presentation import

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose...

CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose...

CVE-2026-8356

CVE-2026-8356 : LibreOffice’s import of legacy binary PPT formats is affected. A stack buffer overflow occurs while processing a colour-replacement record: two fixed-size colour tables are filled from the file, but the write position isn’t reset between the two passes, causing writes past the end...

EUVD-2026-36737

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...

CVE-2026-6047 Heap buffer overflow in OOXML text box element import

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...

CVE-2026-6047

CVE-2026-6047 : LibreOffice is affected during OOXML (DOCX) import of a text box element. The issue is a heap buffer overflow that occurs when replaying deferred parser events; a handler object may be written using a layout for a larger type, causing writes past the allocation end. The root cause...

CVE-2026-6047

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...

CVE-2026-6047 Heap buffer overflow in OOXML text box element import

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...

CVE-2026-6045 Heap buffer overflow in EMF+ gradient brush import

LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small...

CVE-2026-6045

CVE-2026-6045 : In LibreOffice, importing EMF+ graphics can trigger a heap buffer overflow in the gradient brush import. The file’s gradient blend points are read to compute an allocation size, and an overflow can occur when multiplying that count, causing a small buffer to be filled as if it wer...

CVE-2026-6045 Heap buffer overflow in EMF+ gradient brush import

LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small...

CVE-2026-6045

LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small...

CVE-2026-6039 Heap buffer overflow in DXF polyline import

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose...

EUVD-2026-36734

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose...

CVE-2026-6039

CVE-2026-6039 affects LibreOffice DXF import: a heap buffer overflow occurs when importing a DXF polyline with a point count that exceeds 16-bit during buffer sizing, while the full count is used to fill the buffer. This mismatch allows writing past the end of the buffer. In fixed versions, such ...

CVE-2026-6039 Heap buffer overflow in DXF polyline import

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose...

CVE-2026-6039

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose...

PT-2026-49264

Name of the Vulnerable Software and Affected Versions LibreOffice affected versions not specified Description A heap buffer overflow occurs during the import of EMF+ graphics, which can be embedded in documents. Specifically, the issue arises when importing an EMF+ gradient brush. The software...

CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose...

CVE-2026-8358

LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its...