Question 1

What is the EOL Risk Score for Linux Mint 21?

Accepted Answer

Linux Mint 21 has an EOL Risk Score™ of 18 out of 100, placing it in the Low risk band. The score is calculated from four factors: EOL Recency (8/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Linux Mint 21 still supported?

Accepted Answer

Linux Mint 21 is currently supported. End of life is scheduled for April 30, 2027. Plan your migration before that date to avoid security risk.

Question 3

When does Linux Mint 21 reach end of life?

Accepted Answer

Linux Mint 21 reached (or will reach) end of life on April 30, 2027. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Linux Mint 21 after end of life?

Accepted Answer

After end of life, the vendor's standard support for Linux Mint 21 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.