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CVE-2026-3344mediumCWE-440

WatchGuard Firebox System Integrity Check Bypass

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.3%
exploitation probability
0.3%top 83% of all CVEs
observed exploitation
nono source reports it
A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
WatchGuard · Fireware OS