CVE-2026-44195: OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to…

PriorityP342medium6.5CVSS 3.1

AVNACLPRNUINSUCLILAN

EPSS

0.32%

23.5th percentile

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafted username containing a success keyword ("Accepted" or "Successful login") between normal brute-force attempts, an attacker can prevent the failure counter from ever reaching the lockout threshold. This vulnerability is fixed in 26.1.7.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
opnsense	core	< 26.1.7	26.1.7
opnsense	opnsense	< 26.1.7	26.1.7

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