CVE-2026-119423: falha de média gravidade em opnsense core
OPNsense core before 26.7.8 Lockout IP Planting via WebGUI Login Username
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.9epss 0.4%
OPNsense core before 26.7.8 contains a log injection vulnerability that allows unauthenticated attackers to plant victim IP addresses in the lockout_handler by submitting crafted WebGUI login usernames. Attackers can submit usernames like 'Invalid user <victim-ip>' repeatedly to add the victim to the sshlockout table, blocking SSH and WebGUI access and killing its pf states.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Produtos afetados
opnsense · coreCVEs relacionadas — opnsense core
No mesmo produto, das mais perigosas para as menos.
CVE-2026-44194CRITICALOPNsense: RCE on user managmentEPSS 5.7%CVE-2026-119409HIGHOPNsense before 26.7.8 Root Command Injection via Firmware Mirror SettingEPSS 2.5%CVE-2026-57155CRITICALOPNsense: Root RCE via Arbitrary File Write in GeoIP Alias ImporterEPSS 0.9%CVE-2026-53582HIGHOPNsense: XPATH Injection can disclose any secret in config.xmlEPSS 0.7%CVE-2026-44193CRITICALOPNsense: RCE via XMLRPC endpoint using `opnsense.restore_config_section` methodEPSS 0.7%CVE-2026-58390HIGHOPNsense: Stored XSS to root RCE via OpenVPN client common_name in status viewsEPSS 0.6%
Referências
https://abraxaslabs.tech/research/opnsense-lockout-factory-iphttps://github.com/opnsense/corehttps://github.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/library/OPNsense/Auth/AuthenticationFactory.php#L232https://github.com/opnsense/core/blob/26.7.7/src/opnsense/scripts/syslog/lockout_handler#L70https://github.com/opnsense/core/commit/14f8f7dd1d5f06522d60794a7beeac7adb9eca68https://github.com/opnsense/core/commit/2076f2c195bf9537ec220f0e5d6aff998f057410https://github.com/opnsense/core/security/advisories/GHSA-2v2x-m4j7-76pvhttps://www.vulncheck.com/advisories/opnsense-core-before-26.7.8-lockout-ip-planting-via-webgui-login-username