An SSH misconfigurations exists in Tenable OT that led to the potential exfiltration of…
Priority LOW 10CWE-16Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00167 6th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenable | Tenable Operation Technology | 3.18.58 – 4.2.40 | — | No fix listed | CNA |
- Tenable Operation Technology VendorTenable Affected 3.18.58 – 4.2.40 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tenable:operational_technology_exposure:*:*:*:*:*:*:*:* | 3.18.58 to before 4.2.40 | Vulnerable | Tenable |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Linux |
- cpe:2.3:a:tenable:operational_technology_exposure:*:*:*:*:*:*:*:* Versions 3.18.58 to before 4.2.40 Vulnerable ·Tenable
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Linux
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4433
- 2026-10-03 Alias added: GHSA-r3v4-cfx9-jmvv
References
Sources
- CVE-2026-4433 · CVE Program
- CVE-2026-4433 · NVD
- FIRST EPSS
- GHSA-r3v4-cfx9-jmvv · GitHub Advisory Database · CC BY 4.0
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