CVE-2026-63277
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the…
- Risk score
- 52/100
- CVSS
- 8.5 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. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.5 high
References
Original description
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.
Last activity 5 Oct 2026. Patch Forecast updates every hour.