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Vulnerability Details :

CVE-2026-4433

Summary
Assigner-tenable
Assigner Org ID-5ac1ecc2-367a-4d16-a0b2-35d495ddd0be
Published At-24 Mar, 2026 | 20:26
Updated At-25 Mar, 2026 | 14:27
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:tenable
Assigner Org ID:5ac1ecc2-367a-4d16-a0b2-35d495ddd0be
Published At:24 Mar, 2026 | 20:26
Updated At:25 Mar, 2026 | 14:27
Rejected At:
▼CVE Numbering Authority (CNA)

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
Vendor
Tenable, Inc.Tenable, Inc.
Product
Tenable Operation Technology
Platforms
  • Linux
  • 64 bit
Default Status
unaffected
Versions
Affected
  • From 3.18.58 through 4.2.40 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-16CWE-16: Configuration
Type: CWE
CWE ID: CWE-16
Description: CWE-16: Configuration
Metrics
VersionBase scoreBase severityVector
4.01.9LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Version: 4.0
Base score: 1.9
Base severity: LOW
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Tenable has released Tenable OT Security and Tenable OT Security Enterprise Manager ISOs that contains the fix for new installations of the product. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/tenable-appliance). Tenable has released the patch to address this issue within the currently deployed products.

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.tenable.com/security/tns-2026-9
N/A
Hyperlink: https://www.tenable.com/security/tns-2026-9
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:vulnreport@tenable.com
Published At:24 Mar, 2026 | 21:16
Updated At:25 Mar, 2026 | 15:41

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.8MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-16Secondaryvulnreport@tenable.com
CWE ID: CWE-16
Type: Secondary
Source: vulnreport@tenable.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://www.tenable.com/security/tns-2026-9vulnreport@tenable.com
N/A
Hyperlink: https://www.tenable.com/security/tns-2026-9
Source: vulnreport@tenable.com
Resource: N/A

Change History

0
Information is not available yet

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