CVE-2026-1035939.1Critical
Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution
WatchGuard · Fireware OS
Not in CISA KEVVendor fix available
No EPSS score yet. The score appears once FIRST publishes it.
9.1CriticalCVSS
LowMediumHighCrit.
DescriptionNVD
A stack-based buffer overflow vulnerability in the Fireware OS logging service allows a network-adjacent attacker who can impersonate or intercept traffic to the configured log server to execute arbitrary code with root privileges by presenting a specially crafted certificate.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 28 Oct.
- WatchGuard fixes 18 Fireware flaws, including critical RCE bugSecurityOnline · first in our coverage · mentions it in passing
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