CVE-2026-8356 (GCVE-0-2026-8356)

Vulnerability from cvelistv5 – Published: 2026-06-15 16:23 – Updated: 2026-06-15 18:05
VLAI
Title
Stack buffer overflow in PPT presentation import
Summary
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.
Severity
5.4 (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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 18:04 UTC
CWE
Assigner
Document Fdn. CNA
CNA scorecard C 75/100 over 21 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
The Document Foundation LibreOffice Affected: 26.2 , < < 26.2.4 (26.2 series)
guessed Create a notification for this product.
Date Public
2026-06-15 00:00
Credits
Anthropic (automated discovery using Claude) Arthur Chan of Ada Logics (validation and reporting)
Show details on NVD website
To clipboard 

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