CVE-2017-11402

Name: CVE-2017-11402
Creator: NVD / NIST
Published: 2017-11-20T15:29:00.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.54%

Last modified Jun 17, 2026

CVE-2017-11402 is a vulnerability of currently unknown severity. An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. Design flaws in OPC classic and in custom netfilter modules allow an attacker to remotely activate rules on the firewall and to connect to any TCP port of a protected asset, thus bypassing the firewall. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. Design flaws in OPC classic and in custom netfilter modules allow an attacker to remotely activate rules on the firewall and to connect to any TCP port of a protected asset, thus bypassing the firewall. The attack methodology is a crafted OPC dynamic port shift.

Metrics

EPSS Probability

1.54%

71.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Belden	Tofino Xenon Security Appliance Firmware	<= 3.1.0

References

https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txtThird Party Advisory
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdfVendor Advisory
https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txtThird Party Advisory
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdfVendor Advisory

Timeline

Published: Nov 20, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-11402?

How severe is CVE-2017-11402?

Severity scoring for CVE-2017-11402 is pending analysis. The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2017-11402?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-11402?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST