CVE-2026-40139: fallo crítico en BeyondTrust Remote Support
Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ella tiene alerta oficial del gobierno de Brasil.
ssvc Trackcvss 9.2epss 0.8%
Alerta oficial en Brasil
El gobierno federal de Brasil publicó una alerta, recomendación o boletín que cita esta vulnerabilidad.
- CISC Gov.br · 14 jul 2026Boletim do CISC de Vulnerabilidadeleer en gov.br ↗
Fuente: CTIR Gov (GSI) y CISC Gov.br, bajo licencia CC BY-ND 3.0.
A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support. Improper processing of authentication requests may allow an unauthenticated remote attacker to bypass access controls and gain unauthorized access to the appliance, including accounts with elevated privileges. Exploitation requires a specific authentication configuration to be enabled.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVEs relacionadas — BeyondTrust Remote Support
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-12356CRITICALCommand Injection Vulnerability in Remote Support(RS) & Privileged Remote Access (PRA)EPSS 87.4%KEVCVE-2026-102764CRITICALImproper Origin Validation in Internal Messaging Components of BeyondTrust Remote SupportEPSS 78.0%KEVCVE-2026-40140HIGHHigh-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote AccessEPSS 0.6%CVE-2026-40141HIGHHigh-Severity Vulnerability In Web Application Component of BeyondTrust Remote Support and Privileged Remote AccessEPSS 0.5%CVE-2026-40138CRITICALCritical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote AccessEPSS 0.5%CVE-2025-0217HIGHPrivileged Remote Access Authentication BypassEPSS 0.2%