CVE WatchAug 18, 2026

CVE-2026-4433

An SSH misconfigurations exists in Tenable OT that led to the potential exfiltration of socket, port, and service information via the ostunn

CVSS

4.3

Medium

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Mar 24, 2026 · Last modified: Aug 18, 2026 · CWE-16

EPSS · 30d

0.2%EPSS · 30 days0.3%

2026-09-282026-10-25

Technical description

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.

Official references

www.tenable.comhttps://www.tenable.com/security/tns-2026-9

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