Ubuntu 15.x — End of Life
EOL Actively exploitedUbuntu 15.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 15.10 | Oct 22, 2015 | Jul 28, 2016 | Jul 28, 2016 | 15.10 | EOL |
| 15.04 | Apr 23, 2015 | Feb 4, 2016 | Feb 4, 2016 | 15.04 | EOL |
CVEs affecting Ubuntu 15.x (5)
| CVE | Severity | CVSS | EPSS | KEV | Cycle | Description | Published |
|---|---|---|---|---|---|---|---|
| CVE-2026-31431 | HIGH | 7.8 | 96.27% | KEV | 15.04 | In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-pla… | Apr 22, 2026 |
| CVE-2026-31431 | HIGH | 7.8 | 96.27% | KEV | 15.10 | In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-pla… | Apr 22, 2026 |
| CVE-2015-8325 | HIGH | 7.8 | 0.63% | — | 15.10 | The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is… | May 1, 2016 |
| CVE-2015-4000 | LOW | 3.7 | 99.86% | — | 15.04 | The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not pro… | May 21, 2015 |
| CVE-2015-2808 | LOW | 3.7 | 73.85% | — | 15.04 | The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data duri… | Apr 1, 2015 |
Ubuntu 15.x is EOL — migrate to Ubuntu 16.x
Ubuntu 16.x is the next major release. Plan your upgrade before Ubuntu 15.x stops receiving security patches.
Frequently asked questions
Is Ubuntu 15 end of life?
Yes. All Ubuntu 15.x releases have reached end of life and no longer receive security patches. There are 5 known CVEs affecting Ubuntu 15.x. Migrate to Ubuntu 16.x as soon as possible.
What CVEs affect Ubuntu 15?
There are 5 CVEs tracked for Ubuntu 15.x and 2 listed in the CISA Known Exploited Vulnerabilities catalog. See the full list above with CVSS and EPSS scores.
What is the latest Ubuntu 15 version?
The latest Ubuntu 15.x patch release is 15.10, released on October 22, 2015. Always run the latest patch to benefit from all security fixes.
How to migrate from Ubuntu 15 to Ubuntu 16?
To migrate from Ubuntu 15 to Ubuntu 16: (1) review the official Ubuntu 16 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Ubuntu 15 in production?
No. Ubuntu 15 has reached end of life and security vulnerabilities are no longer patched. Critically, 2 CVEs affecting Ubuntu 15.x are in the CISA KEV catalog — meaning they are actively exploited in the wild. Upgrade to a supported version immediately.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA