Cisco ASA5585-S20-K9 End of Life & End of Support
Cisco ASA 5585-X Adaptive Security Appliance
Past Last Date of Support (May 31, 2023)The ASA 5585-X was Cisco's high-end data center firewall, a chassis-based platform pairing a security services processor with optional FirePOWER services for large enterprise and federal perimeters. Organizations should migrate to the Secure Firewall 3100 series, with the 3130 providing a comparable high-throughput NGFW replacement.
Cisco ASA5585-S20-K9 lifecycle milestone dates
- End-of-Sale Date
- Jun 1, 2018
- Last Date of Support (LDoS)
- May 31, 2023
Dates per Cisco’s official End-of-Sale/End-of-Life bulletin. Verify against your support contract before acting.
Running past End-of-Sale or Last Date of Support means no new Cisco TAC, hardware replacement, or security fixes. Uniqcli, an authorized Cisco partner, scopes a like-for-like or better replacement, confirms TAA compliance, accepts the Government Purchase Card (GPC), and plans a low-risk cutover.
Compare ASA5585-S20-K9 vs its replacement → · Prefer to keep it running? Cisco no longer sells SmartNet for this model. Extend support with third-party maintenance →
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Frequently asked questions
When is the Cisco ASA5585-S20-K9 end of life?
Cisco announced End-of-Sale for the ASA5585-S20-K9 effective Jun 1, 2018. The Last Date of Support (LDoS) is May 31, 2023, after which Cisco no longer provides support. It is past its last date of support.
What replaces the Cisco ASA5585-S20-K9?
Cisco's recommended migration is the Cisco Secure Firewall 3130 (Firepower 3130). Uniqcli, an authorized Cisco partner, can quote the replacement TAA-compliant and GPC-payable, and help plan the cutover.
Can I still get support for the ASA5585-S20-K9?
Not from Cisco. The ASA5585-S20-K9 passed its Last Date of Support (May 31, 2023), so Cisco TAC, hardware replacement, and SmartNet renewals are no longer available. Independent third-party maintenance can still cover the hardware itself, typically well below OEM renewal rates. Uniqcli can review your install base, confirm coverage, and quote extended support or a refresh side by side.