Cisco Meraki MS420 Series End of Life Date
Cisco Meraki MS420 Series end-of-life date, support status, and CVE risk. Dates read at the vendor's own lifecycle pages (documentation.meraki.com); the source of each date is on the product page.
It has been without security patches for 3 years.
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →| Version | Latest | EOL Date | Status |
|---|---|---|---|
| MG21E (WW) | MG21E (WW) | Sep 18, 2029 | Active |
| MG21E (NA) | MG21E (NA) | Sep 18, 2029 | Active |
| MG21 (WW) | MG21 (WW) | Sep 18, 2029 | Active |
| MG21 (NA) | MG21 (NA) | Sep 18, 2029 | Active |
| MG51 | MG51 | May 30, 2030 | Active |
| MG51E | MG51E | May 30, 2030 | Active |
| MV21 / MV71 | MV21 / MV71 | Jun 19, 2026 | EOL |
| MV Gen 2 Cameras | MV Gen 2 Cameras | Dec 31, 2030 | Active |
What does Cisco Meraki MS420 Series end of life mean?
When Cisco Meraki MS420 Series 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 Cisco Meraki MS420 Series past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Cisco Meraki MX67C or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.