Cos cos-109 · Version Status
Cos cos-109 End of Life Date
Cos cos-109 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
⚠
Cos cos-109 is past end of life. This version no longer receives security patches. 250 days past EOL — migrate to a supported version immediately.
EOL Date
Sep 1, 2025
250 days past EOL
Latest Release
cos-109-17800-570-50
LTS release
Release Date
Sep 27, 2023
Cos cos-109 series
| 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 |
Jun 1, 2020 |
EOL |
| cos-77 LTS |
cos-77-12371-1109-0 |
Apr 1, 2021 |
EOL |
| cos-81 LTS |
cos-81-12871-1317-8 |
Sep 1, 2021 |
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 1, 2023 |
EOL |
| cos-97 LTS |
cos-97-16919-450-41 |
Mar 1, 2024 |
EOL |
What does Cos cos-109 end of life mean?
When Cos cos-109 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: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Cos cos-109 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Cos cos-125 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Cos cos-109 reach end of life?
Cos cos-109 reached end of life on September 1, 2025. This version is no longer receiving security patches.
Is Cos cos-109 still supported?
No. Cos cos-109 reached end of life on September 1, 2025 and is no longer receiving security patches.
What should I upgrade to from Cos cos-109?
The recommended upgrade from Cos cos-109 is
Cos cos-125 — the latest actively supported version. Check the
Cos full timeline for all supported versions.
What are the security risks of running Cos cos-109 past EOL?
When Cos cos-109 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Cos should migrate immediately or implement compensating controls.