# LibreOffice Calc vulnerabilities

Source: https://junglewise.ai/threats/technologies/libreoffice-calc-1  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/libreoffice-calc-1.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in LibreOffice Calc: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-63277, was published on 5 October 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 3
- All time: 3 (0 critical, 0 exploited in the wild)

## About LibreOffice Calc

Spreadsheet application included in LibreOffice office suite for data analysis and calculations.

## Latest LibreOffice Calc vulnerabilities

- [CVE-2026-63277: LibreOffice Calc remote code execution via SQL provider and JDBC connector](https://junglewise.ai/threats/cve-2026-63277-libreoffice-calc-can-link-a-cell-range-to-an-external-data-source) (info, published 5 Oct 2026)
- [CVE-2026-63267: LibreOffice Calc external CSV data link LFI and SSRF](https://junglewise.ai/threats/cve-2026-63267-libreoffice-calc-can-link-a-cell-range-to-an-external-csv-data) (info, published 5 Oct 2026)
- [CVE-2026-63266: LibreOffice Calc arbitrary file write via Firebird backup functionality](https://junglewise.ai/threats/cve-2026-63266-libreoffice-calc-can-link-a-cell-range-to-an-external-data-source) (info, published 5 Oct 2026)

## Most severe LibreOffice Calc vulnerabilities

- [CVE-2026-63277: LibreOffice Calc remote code execution via SQL provider and JDBC connector](https://junglewise.ai/threats/cve-2026-63277-libreoffice-calc-can-link-a-cell-range-to-an-external-data-source) (info, published 5 Oct 2026)
- [CVE-2026-63267: LibreOffice Calc external CSV data link LFI and SSRF](https://junglewise.ai/threats/cve-2026-63267-libreoffice-calc-can-link-a-cell-range-to-an-external-csv-data) (info, published 5 Oct 2026)
- [CVE-2026-63266: LibreOffice Calc arbitrary file write via Firebird backup functionality](https://junglewise.ai/threats/cve-2026-63266-libreoffice-calc-can-link-a-cell-range-to-an-external-data-source) (info, published 5 Oct 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 3 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other LibreOffice technologies

- [LibreOffice](https://junglewise.ai/threats/technologies/libreoffice-libreoffice): 8 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "LibreOffice Calc vulnerabilities", https://junglewise.ai/threats/technologies/libreoffice-calc-1, 12 November 2026.