Container-Optimized OS cos-117 End of Life Date
Container-Optimized OS cos-117 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
Container-Optimized OS cos-117 was released on October 2, 2024 and support ended on September 1, 2026 — a supported lifespan of 1 year and 11 months, in line with the 1 year and 11 months median for Container-Optimized OS LTS releases. It was a long-term support (LTS) release, so it received a longer patch window than the interim releases around it. The last patch it will ever receive is cos-117-18613-731-21, published September 17, 2026 — 16 days after the published end-of-life date. It has been without security patches for 22 days.
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →| Version | Latest | EOL Date | Status |
|---|---|---|---|
| cos-69 LTS | cos-69-10895-385-0 | Dec 1, 2019 | EOL |
| cos-73 LTS | cos-73-11647-656-0 | Sep 5, 2020 | EOL |
| cos-77 LTS | cos-77-12371-1109-0 | Apr 1, 2021 | EOL |
| cos-81 LTS | cos-81-12871-1317-8 | Jan 10, 2022 | EOL |
| cos-85 LTS | cos-85-13310-1498-13 | Sep 1, 2022 | EOL |
| cos-89 LTS | cos-89-16108-798-22 | Mar 1, 2023 | EOL |
| cos-93 LTS | cos-93-16623-461-42 | Oct 24, 2023 | EOL |
| cos-97 LTS | cos-97-16919-450-41 | Mar 27, 2024 | EOL |
What does Container-Optimized OS cos-117 end of life mean?
When Container-Optimized OS cos-117 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Container-Optimized OS cos-117 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Container-Optimized OS cos-129 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.