CVE-2026-63266
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the…
- Risk score
- 42/100
- CVSS
- 6.8 v4.0
- Exploit chance (30 days)
- 0.2%
- Published
- 5 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only insi…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.8 medium
References
Original description
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only inside its own private directory.
Last activity 5 Oct 2026. Patch Forecast updates every hour.