CVE-2017-11400

Name: CVE-2017-11400
Creator: NVD / NIST
Published: 2017-11-20T15:29:00.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.27%

Last modified Jun 17, 2026

CVE-2017-11400 is a vulnerability of currently unknown severity. An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. EPSS estimates a 0.27% 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. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

Metrics

EPSS Probability

0.27%

18.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

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-2017-11400?

How severe is CVE-2017-11400?

Severity scoring for CVE-2017-11400 is pending analysis. The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2017-11400?

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-2017-11400?

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

Scan your code now

Source: NVD / NIST