Question 1

What is the EOL Risk Score for LibreOffice 5.4?

Accepted Answer

LibreOffice 5.4 has an EOL Risk Score™ of 50 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (40/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is LibreOffice 5.4 still supported?

Accepted Answer

LibreOffice 5.4 is no longer supported — it has passed its end of life date (June 11, 2018). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does LibreOffice 5.4 reach end of life?

Accepted Answer

LibreOffice 5.4 reached (or will reach) end of life on June 11, 2018. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running LibreOffice 5.4 after end of life?

Accepted Answer

After end of life, the vendor's standard support for LibreOffice 5.4 ends, so newly discovered vulnerabilities may never be fixed unless a paid extended support option covers that version. Auditors ask about it too: PCI DSS requirement 12.3.4, for example, calls for a yearly review of vendor end-of-life announcements with a remediation plan approved by senior management.