Juniper SRX Series (hardware) SRX300 End of Life Date
Juniper SRX Series (hardware) SRX300 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
| Version | Latest | EOL Date | Status |
|---|---|---|---|
| SRX210 | SRX210B, SRX210H, SRX210H-POE | Aug 31, 2017 | EOL |
| SRX100 | SRX100B, SRX100H | May 10, 2019 | EOL |
| SRX110H | SRX110H-VA, SRX110H-VB | May 10, 2019 | EOL |
| SRX210HE | SRX210BE, SRX210HE, SRX210HE-POE | May 10, 2019 | EOL |
| SRX220H | SRX220H, SRX220H-POE | May 10, 2019 | EOL |
| SRX240 | SRX240B, SRX240B2, SRX240H, SRX240H-POE, SRX240H-DC | May 10, 2019 | EOL |
| SRX5600 (first generation) | SRX5600BASE-AC/DC | Dec 31, 2022 | EOL |
| SRX5800 (first generation) | SRX5800BASE-AC/DC (SRX5800-HC-*-TAA ended 05/01/2021) | Dec 31, 2022 | EOL |
What does Juniper SRX Series (hardware) SRX300 end of life mean?
When Juniper SRX Series (hardware) SRX300 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: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Juniper SRX Series (hardware) SRX300 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Juniper SRX Series (hardware) SRX4600 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.