WatchGuard Firebox XTM 515 · Version Status
WatchGuard Firebox XTM 515 End of Life Date
WatchGuard Firebox XTM 515 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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WatchGuard Firebox XTM 515 is past end of life. This version no longer receives security patches. 2071 days past EOL — migrate to a supported version immediately.
EOL Date
Dec 31, 2020
2071 days past EOL
Latest Release
XTM 515
Standard release
Release Date
—
WatchGuard Firebox XTM 515 series
Lifecycle detail
It has been without security patches for 5 years and 8 months.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
20/20 Named in CISA 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 →
Extended Support
Extended WatchGuard Firebox XTM 515 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
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All WatchGuard Firebox Versions
What does WatchGuard Firebox XTM 515 end of life mean?
When WatchGuard Firebox XTM 515 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 WatchGuard Firebox XTM 515 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to WatchGuard Firebox Firebox T85-PoE or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does WatchGuard Firebox XTM 515 reach end of life?
WatchGuard Firebox XTM 515 reached end of life on December 31, 2020. This version is no longer receiving security patches.
Is WatchGuard Firebox XTM 515 still supported?
No. WatchGuard Firebox XTM 515 reached end of life on December 31, 2020 and is no longer receiving security patches.
What should I upgrade to from WatchGuard Firebox XTM 515?
The recommended upgrade from WatchGuard Firebox XTM 515 is
WatchGuard Firebox Firebox T85-PoE — the latest actively supported version. Check the
WatchGuard Firebox full timeline for all supported versions.
What are the security risks of running WatchGuard Firebox XTM 515 past EOL?
When WatchGuard Firebox XTM 515 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL WatchGuard Firebox should migrate immediately or implement compensating controls.