Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the…
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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."
Why it matters now
EPSS 0.01667 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:checkpoint:firewall-1:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Check Point |
| cpe:2.3:a:checkpoint:firewall-1:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Check Point |
| cpe:2.3:a:checkpoint:firewall-1:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Check Point |
- cpe:2.3:a:checkpoint:firewall-1:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Check Point
- cpe:2.3:a:checkpoint:firewall-1:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Check Point
- cpe:2.3:a:checkpoint:firewall-1:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Check Point
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2000-0804
- 2026-10-03 Alias added: GHSA-p3r3-w3mg-3rp5
More Check Point Firewall-1 vulnerabilities
- TI-2004-00028 Multiple format string vulnerabilities in HTTP Application Intelligence (AI) component in… CVSS 2.0HIGH 10.0
- TI-2004-00029 Stack-based buffer overflow in Check Point VPN-1 Server 4.1 through 4.1 SP6 and Check… CVSS 2.0HIGH 10.0
- TI-2004-00422 Buffer overflow in the ISAKMP functionality for Check Point VPN-1 and FireWall-1 NG… CVSS 2.0HIGH 10.0
- TI-2004-00066 The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c… CVSS 3.1HIGH 7.5
- TI-2005-03468 The Internet Key Exchange version 1 (IKEv1) implementation in Check Point products allows… CVSS 2.0HIGH 7.8
- TI-2004-00640 Heap-based buffer overflow in ASN.1 decoding library in Check Point VPN-1 products, when… CVSS 2.0HIGH 7.5
Sources
- CVE-2000-0804 · CVE Program
- CVE-2000-0804 · NVD
- FIRST EPSS
- GHSA-p3r3-w3mg-3rp5 · GitHub Advisory Database · CC BY 4.0
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