Belden Hirschmann HiLCOS BAT867 vulnerabilities

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Published CVEs affecting Belden Hirschmann HiLCOS BAT867: 1 record(s), with affected versions and fixes.

CVE-2017-20233 Medium · 5.4 CWE-284 Apr 3, 2026

Hirschmann HiLCOS Layer-2 Firewall Multicast Broadcast Traffic Bypass

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.