CVE-2026-44195

MEDIUM

5.3

Description

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie5/13/2026

Derniere modification5/13/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-307

References

https://github.com/opnsense/core/security/advisories/GHSA-h3vx-4q27-rc42(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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