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Firebox T55-W

SKU Firebox-T55-W

WatchGuard Chassis · Firebox Series

Firebox T55-W has reached end of life. WatchGuard support ended . Last available for order . Replacement: Firebox T125-W, T145-W.
Replaced by Firebox T125-W · T145-W

Known Exploited Vulnerabilities

This device is past WatchGuard's security-support date. 4 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform it runs. WatchGuard is not issuing patches for this model. Isolate, compensate, or refresh.

CVE KEV added Vulnerability Flags
CVE-2025-14733 WatchGuard Firebox Out of Bounds Write Vulnerability
CVE-2025-9242 WatchGuard Firebox Out-of-Bounds Write Vulnerability
CVE-2022-23176 WatchGuard Firebox and XTM Privilege Escalation Vulnerability
CVE-2022-26318 WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

Source: CISA Known Exploited Vulnerabilities catalog. The Ransomware flag reflects CISA's own knownRansomwareCampaignUse field, set when the CVE has been observed in ransomware campaigns per their threat intel. It's not a property of the vulnerability description itself.

Correlation is at the platform level, not per-OS-version. Not exhaustive: KEV only lists actively-exploited CVEs and many relevant unexploited vulnerabilities are not here. Verify against vendor security advisories (PSIRT, JSA, PAN-SA) and NVD before acting. See compensating controls if refresh isn't immediate.

Firebox T55-W Lifecycle Overview

The WatchGuard Firebox T55-W (Firebox-T55-W) is a chassis product in the WatchGuard Firebox series. This product has reached end of life as of , meaning WatchGuard no longer provides technical support, software updates, or hardware replacement for this product. It was last available for purchase on . Organizations still running the Firebox T55-W should plan a migration to Firebox T125-W, T145-W.

Lifecycle Milestones

End of sale 4y 7mo ago
Last date of support 4mo ago
Applicable Platforms
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