Cisco Catalyst 4500-E Series — End-of-Life & EOSL Dates
Modular Catalyst 4500-E chassis family. Cisco ended sales in 2020; hardware support runs to Oct 2025.
Every tracked Cisco Catalyst 4500-E Series SKU group is past Cisco end of service life (last group Oct 2025). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure. Cisco’s named migration path: C9404R-48U-BNDL-E.
End of sale
Oct 2020
Last date of support
Oct 2025
Part numbers
27
10
months past last support
Why this score
- Past end of service life — 10 months ago
- Vendor-published date, source-linked
- Vendor-named replacement / migration path available
- Category: modular distribution switch
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Past end of support and listed in the CISA Known Exploited Vulnerabilities catalog
1 catalogued vulnerability is associated with this product line, 1 of them linked to known ransomware campaigns. CISA lists these as actively exploited. This product is also past its last date of support, so the vendor no longer issues fixes for it. Past support on its own is a planning matter; both together is an audit finding, and for US federal agencies BOD 22-01 sets a remediation deadline.
CISA names product lines and software rather than part numbers, so each row states how it was matched. Confirm against the vendor advisory before acting: this augments vendor data, it does not replace it.
CISA Known Exploited Vulnerabilities catalog · catalogue 2026.08.18 · every tracked product past support and in KEV
Part numbers in this family
All 27 share the dates above. Find your exact part to confirm.
| Part number | End of sale | Last support | Status |
|---|---|---|---|
| WS-C4K-PS-CVR | Oct 2020 | Oct 2025 | Past support |
| WS-C4KE-PS-CVR | Oct 2020 | Oct 2025 | Past support |
| WS-X4503-FILTER | Oct 2020 | Oct 2025 | Past support |
| WS-X4503E-19CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4503E-23CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4503E-ACC-KIT | Oct 2020 | Oct 2025 | Past support |
| WS-X4506-FILTER | Oct 2020 | Oct 2025 | Past support |
| WS-X4506E-19CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4506E-23CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4506E-ACC-KIT | Oct 2020 | Oct 2025 | Past support |
| WS-X4507-FILTER | Oct 2020 | Oct 2025 | Past support |
| WS-X4507E-19CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4507E-23CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4507E-ACC-KIT | Oct 2020 | Oct 2025 | Past support |
| WS-X4510-FILTER | Oct 2020 | Oct 2025 | Past support |
| WS-X4510E-19CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4510E-23CNTR | Oct 2020 | Oct 2025 | Past support |
| WS-X4510E-ACC-KIT | Oct 2020 | Oct 2025 | Past support |
| WS-X4582 | Oct 2020 | Oct 2025 | Past support |
| WS-X4593-E | Oct 2020 | Oct 2025 | Past support |
| WS-X4596-E | Oct 2020 | Oct 2025 | Past support |
| WS-X4597 | Oct 2020 | Oct 2025 | Past support |
| C1-C4503-E | Oct 2020 | Oct 2025 | Past support |
| C1-C4503E | Oct 2020 | Oct 2025 | Past support |
| C1-C4503E-S7L | Oct 2020 | Oct 2025 | Past support |
| C1-C4506-E | Oct 2020 | Oct 2025 | Past support |
| C1-C4506E | Oct 2020 | Oct 2025 | Past support |
Retired OS trains for this hardware
The software running on a device ages on its own clock. These Cisco OS trains tied to this product by Cisco's own bulletins have announced end-of-life dates — a unit capped on one of them can be unpatched even while the hardware is still supported.
Security fixes ended May 1, 2019 · support ended Apr 30, 2022 — details + source →
Options from here
The Cisco Catalyst 4500-E Series is past Cisco end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today. Set a migration timeline and budget.
Low-criticality role: document the risk, harden backups, retire on your terms.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Catalyst 4500-E Series — questions
Is the Cisco Catalyst 4500-E Series end of life?
Yes. Every tracked 4500-E Series SKU group is past its last date of support.
What is the last date of support for the 4500-E Series?
Oct 2025, per the Cisco EOL bulletin.
Where do these 4500-E Series dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official Cisco EOL bulletin it was taken from.
What is the replacement for the 4500-E Series?
Cisco's end-of-life bulletin lists C9404R-48U-BNDL-E as the recommended migration path for the 4500-E Series. Exact per-part-number replacements are in the linked bulletin.
More Cisco Catalyst · compare all 29 models →
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