What’s Vulnerable › Vulnerabilities
CVE-2026-4433
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-24 · updated 2026-08-18
- Weakness: CWE-16
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.
Affected products
- Tenable, Inc. Tenable Operation Technology: from 3.18.58 before 4.2.40 — fixed in 4.2.40
How to fix
Upgrade to a fixed version: Tenable, Inc. Tenable Operation Technology 4.2.40. Check the vendor advisory for mitigations.
References
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