Some of the DLLs loaded by Check Point ZoneAlarm up to 15.4.062 are taken from directories where all users have write permissions. This can allow a local attacker to replace a DLL file with a malicious one and cause Denial of Service to the client.

Check Point ZoneAlarm version 15.3.064.17729 and below expose a WCF service that can allow a local low privileged user to execute arbitrary code as SYSTEM.

Race condition in ZoneAlarm Extreme Security 9.1.507.000 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute

TrueVector in Check Point ZoneAlarm 8.0.020.000, with vsmon.exe running, allows remote HTTP proxies to cause a denial of service (crash) and disable the HIDS module via a crafted response.

Buffer overflow in multiscan.exe in Check Point ZoneAlarm Security Suite 7.0.483.000 and 8.0.020.000 allows local users to execute arbitrary code via a file or directory with a long path. NOTE: some of these details are obtained from third party information.

ZoneAlarm Pro 7.0.362.000 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via the (1) NtCreatePort and (2) NtDeleteFile kernel SSDT hooks, a partial regression of CVE-2007-2083.

vsdatant.sys 6.5.737.0 in Check Point Zone Labs ZoneAlarm before 7.0.362 allows local users to gain privileges via a crafted Interrupt Request Packet (Irp) in a METHOD_NEITHER (1) IOCTL 0x8400000F or (2) IOCTL 0x84000013 request, which can be used to overwrite arbitrary memory locations.

Check Point ZoneAlarm Pro before 6.5.737.000 does not properly test for equivalence of process identifiers for certain Microsoft Windows API functions in the NT kernel 5.0 and greater, which allows local users to call these functions, and bypass firewall rules or gain privileges, via a modified identifier that is one, two, or three greater than the canonical identifier.

ZoneAlarm Pro 6.5.737.000, 6.1.744.001, and possibly earlier versions and other products, allows local users to cause a denial of service (system crash) by sending malformed data to the vsdatant device driver, which causes an invalid memory access.

The IOCTL handling in srescan.sys in the ZoneAlarm Spyware Removal Engine (SRE) in Check Point ZoneAlarm before 5.0.156.0 allows local users to execute arbitrary code via certain IOCTL lrp parameter addresses.