ASA5506-K9

ASA 5500-X Series Firewalls: firewall / security appliance

EOSL — PAST

2 mo

past end of service life

Lifecycle position

now

availableend of saleservice

AvailableSep 2012

End of saleAug 2021

End of serviceAug 2026Cisco bulletin ↗

Vendor-listed replacementCisco Firepower 1000 Seriesmigration options ↗

Options from here

Third-party maintenance

Keep it in production past the OEM cutoff with an independent maintainer.

Pre-stock spares

Buy spares now, while units still circulate on the secondary market. eBay listings for ASA5506-K9 ↗

Plan replacement

It is unsupported today. Set a migration timeline and budget.

Run to failure

Low-criticality role: document the risk, harden backups, retire on your terms.

Other SKUs in 5500-X Series Firewalls

ASA5525-FPWR-K9›ASA5545-FPWR-K9›ASA5555-K9›ASA5508-K9›ASA5516-FPWR-K9›ASA5506-K8›ASA5506-SEC-BUN-K8›ASA5506-SEC-BUN-K9›

Questions about ASA5506-K9

Is the Cisco ASA5506-K9 still supported?

No. Cisco's last date of support for ASA5506-K9 was Aug 2026 (per the Cisco EOL bulletin). It is past end of service life.

When did the ASA5506-K9 reach end of sale?

ASA5506-K9 reached end of sale Aug 2021, per the Cisco EOL bulletin.

What is the last date of support (EOSL) for the ASA5506-K9?

Aug 2026, per the Cisco EOL bulletin.

What is the replacement for the ASA5506-K9?

Cisco's end-of-life bulletin lists Cisco Firepower 1000 Series as the recommended migration path for this product group; the per-part-number mapping is in the linked bulletin.

Can the ASA5506-K9 be maintained after Cisco support ends?

After the last date of support, ASA5506-K9 units can often be kept in production through third-party maintenance providers. Cisco no longer issues software fixes, support, or hardware replacement for it.