Juniper EX Series (hardware) EX4300 · Version Status
Juniper EX Series (hardware) EX4300 End of Life Date
Juniper EX Series (hardware) EX4300 end-of-life date, support status, and CVE risk. Dates read at the vendor's own lifecycle pages (support.juniper.net); the source of each date is on the product page.
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Juniper EX Series (hardware) EX4300 is actively supported. EOL date: March 31, 2029.
📅 Get reminded before Juniper EX Series (hardware) EX4300 reaches EOL on March 31, 2029 — alerts 90, 30 & 7 days out.
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EOL Date
Mar 31, 2029
902 days remaining
Latest Release
EX4300-24P, EX4300-24T, EX4300-48P, EX4300-48T (-S, -TAA, -AFI, -DC, -DC-AFI, -DC-TEL variants; EDU and 3M2/5M2 bundles)
Standard release
Release Date
—
Juniper EX Series (hardware) EX4300 series
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
All Juniper EX Series (hardware) Versions
| Version | Latest | EOL Date | Status |
|---|
| EX2500 |
EX2500-24F-BF, EX2500-24F-FB |
Nov 30, 2017 |
EOL |
| EX4200-24P / EX4200-48P (original PoE models) |
EX4200-48P, EX4200-24P |
Jun 30, 2018 |
EOL |
| EX3200 |
EX3200-24P, EX3200-24T, EX3200-24T-DC, EX3200-48P, EX3200-48T, EX3200-48T-DC (-TAA variants), EX3200-FANTRAY |
Aug 31, 2019 |
EOL |
| EX4500 (first generation) |
EX4500-40F-FB, EX4500-40F-BF |
Jan 31, 2016 |
EOL |
| EX4500 (-C models) |
EX4500-40F-BF-C, EX4500-40F-DC-C, EX4500-40F-FB-C, EX4500-LB |
Dec 31, 2018 |
EOL |
| EX4500 (VC1 generation) |
EX4500-40F-VC1-BF, EX4500-40F-VC1-BF-TAA, EX4500-40F-VC1-FB, EX4500-VC1-128G, EX4500-UM-4XSFP |
Dec 31, 2022 |
EOL |
| EX6210 |
EX6210-CHAS, EX6200-48P, EX6200-48T, EX6200-SRE64-4XS, EX6200-PWR-AC2500/DC2100 |
Dec 31, 2022 |
EOL |
| EX8216 |
EX8216-BASE-AC, EX8216-BASE-AC-TAA, EX8216-REDUND-AC/AC2/DC, EX8216-CHAS-S, EX8216-SF320-S |
Dec 31, 2022 |
EOL |
What does Juniper EX Series (hardware) EX4300 end of life mean?
When Juniper EX Series (hardware) EX4300 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 Juniper EX Series (hardware) EX4300 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Juniper EX Series (hardware) EX3400 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Juniper EX Series (hardware) EX4300 reach end of life?
Juniper EX Series (hardware) EX4300 reaches end of life on March 31, 2029. That is 902 days remaining.
Is Juniper EX Series (hardware) EX4300 still supported?
Yes, Juniper EX Series (hardware) EX4300 is currently supported. The EOL date is March 31, 2029.
What should I upgrade to from Juniper EX Series (hardware) EX4300?
The recommended upgrade from Juniper EX Series (hardware) EX4300 is
Juniper EX Series (hardware) EX3400 — the latest actively supported version. Check the
Juniper EX Series (hardware) full timeline for all supported versions.
What are the security risks of running Juniper EX Series (hardware) EX4300 past EOL?
When Juniper EX Series (hardware) EX4300 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Juniper EX Series (hardware) should migrate immediately or implement compensating controls.