Stack-based buffer overflow in Check Point VPN-1 Server 4.1 through 4.1 SP6 and Check Point SecuRemote/SecureClient 4.1 through 4.1 build 4200 allows remote attackers to execute arbitrary code via an ISAKMP packet with a large Certificate Request packet.

Check Point Firewall-1 4.1 up to NG AI R55 allows remote attackers to obtain potentially sensitive information by sending an Internet Key Exchange (IKE) with a certain Vendor ID payload that causes Firewall-1 to return a response containing version and other information.