CVE-2021-4477 in Hirschmann HiLCOS OpenBAT
요약 (영어)
Hirschmann HiLCOS OpenBAT and BAT450 products contain a firewall bypass vulnerability in IPv6 IPsec deployments that allows traffic from VPN connections to bypass configured firewall rules. Attackers can exploit this vulnerability by establishing IPv6 IPsec connections (IKEv1 or IKEv2) while simultaneously using an IPv6 Internet connection to circumvent firewall policy enforcement.
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책임이 있는
VulnCheck
예약하다
2026. 04. 03.
공개
2026. 04. 04.
상태
확인됨
엔트리
VulDB provides additional information and datapoints for this CVE:
| 아이디 | 취약성 | CWE | 악용 | 대책 | CVE |
|---|---|---|---|---|---|
| 355252 | Belden Hirschmann HiLCOS OpenBAT Policy Enforcement 권한 상승 | 284 | 정의되지 않음 | 공식 수정 | CVE-2021-4477 |