CVE-2017-11401

9.8 CRITICAL

Published: November 20, 2017 Modified: May 13, 2026

Description

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. Improper handling of the mbap.length field of ModBus packets in the ModBus DPI filter allows an attacker to send malformed/crafted packets to a protected asset, bypassing function code filtering.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt

Source: cve@mitre.org

Third Party Advisory

https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf

Source: cve@mitre.org

Vendor Advisory

https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

1.4%

69th percentile

Exploitation Status

Not in CISA KEV

Affected Vendors

belden