CVE-2000-0804

High CVSS 7.5

Published 2000-11-14 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-2000-0804, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka "One-way Connection Enforcement Bypass."

Sources

NVD record for CVE-2000-0804

CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P