CVE-2026-98241

A flaw was found in the Linux kernel's IPv6 IPsec XFRM networking framework. When handling TCP connection handshakes routed through an IPsec tunnel with a reduced Maximum Transmission Unit MTU, the kernel's local error-handling path incorrectly treats incomplete connection request sockets as full...

CVE-2021-4477 Hirschmann HiLCOS OpenBAT BAT450 IPv6 IPsec Firewall Bypass

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...

CVE-2021-4477: Improper Access Control

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...

[security bulletin] SSRT5979 - HP Jetdirect 635n IPv6/IPsec Print Server (J7961A) Remote Denial of Service (DoS)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c00557788 Version: 1 HPSBPI02078 SSRT5979 - HP Jetdirect 635n IPv6/IPsec Print Server J7961A Remote Denial of Service DoS NOTICE: The information in this Security Bulletin should be acted upon as...