CVE Catalog

CVE-2026-4433

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

6th percentile - higher than 6% of all known CVEs

Summary

SSH misconfiguration in Tenable OT allows potential exfiltration of socket, port, and service information via the ostunnel user and GatewayPorts. This could be used to glean information about the underlying system and attempt to compromise the host.

Risk Assessment

Information disclosure about the system may facilitate further attacks and compromise of OT infrastructure.

Recommendation

Fix SSH configuration in Tenable OT, including restricting GatewayPorts and ostunnel user privileges.

Related vulnerabilities

Original NVD description (English source)

An SSH misconfigurations exists in Tenable OT that led to the potential exfiltration of socket, port, and service information via the ostunnel user and GatewayPorts. This could be used to potentially glean information about the underlying system and give an attacker information that could be used to attempt to compromise the host.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS