CVE-2017-20233 (GCVE-0-2017-20233)

Vulnerability from cvelistv5 – Published: 2026-04-03 22:47 – Updated: 2026-05-25 23:40
VLAI
Title
Hirschmann HiLCOS Layer-2 Firewall Multicast Broadcast Traffic Bypass
Summary
Hirschmann HiLCOS products OpenBAT, BAT450, WLC, BAT867 contains a firewall filtering vulnerability that fails to correctly filter IPv4 multicast and broadcast traffic when management IP address filtering is disabled, allowing configured filter rules to be bypassed. Attackers with network access can inject or observe multicast and broadcast packets that should have been blocked by the firewall.
Severity
5.4 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
5.3 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 16:50 UTC
CWE
  • CWE-284 - Improper access control
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7798 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Belden Hirschmann HiLCOS OpenBAT, BAT450, WLC Affected: 0 , ≤ 9.10.5126-REL (semver)
Affected: 0 , ≤ 9.12.5500-REL (semver)
guessed Create a notification for this product.
Belden Hirschmann HiLCOS BAT867 Affected: 0 , ≤ 9.14.5500-REL (semver)
Affected: 0 (semver)
guessed Create a notification for this product.
Date Public
2017-05-08 00:00
Show details on NVD website
To clipboard 

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