CVE-2017-11401
CRITICALBelden Hirschmann Tofino Xenon Security Appliance <03.2.00 - ModBus DPI Filter Bypass
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf
Third Party Advisory x_refsource_misc
https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt
Scores
CVSS v3
9.8
EPSS
0.0008
EPSS Percentile
23.6%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (1)
belden/tofino_xenon_security_appliance_firmware
< 3.1.0
Published
Nov 20, 2017
Tracked Since
Feb 18, 2026