Firebox and Fireware OS
CVE-2024-5974: Firebox Authenticated Buffer Overflow Vulnerability
A buffer overflow in WatchGuard Fireware OS could may allow an authenticated remote attacker with privileged management access to execute arbitrary code with system privileges on the firewall.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 4.0 8.6
EPSS1.1%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Fireware OS (Default) 11.9 | 12.10.4 or later |
| Fireware OS (T15/T35) 12.0 | 12.5.12+701324 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A buffer overflow in WatchGuard Fireware OS could may allow an authenticated remote attacker with privileged management access to execute arbitrary code with system privileges on the firewall. This issue affects Fireware OS: from 11.9.6 through 12.10.3.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.