Stack buffer overflow in PPT presentation import_CVE-2026-8356

5.4 / 10

MEDIUM

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

Description

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 combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables.

Basic Information

ID CVE-2026-8356

Source Document Fdn.

Published Jun 15, 2026 at 16:23

Affected Product

Vendor The Document Foundation

Product LibreOffice

Version 26.2

Affected Versions The Document Foundation LibreOffice 26.2

CWE Classification

CWE-787 CWE-121

References

www.libreoffice.org /about-us/security/advisories/cve-2026-8356

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    "published": "2026-06-15T16:23:06.477Z",
    "modified": "2026-06-15T16:23:06.477Z",
    "type": "cve",
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