Check Point VPN-1 R55, R65, and other versions, when Port Address Translation (PAT) is…
Priority LOW 26CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
Check Point VPN-1 R55, R65, and other versions, when Port Address Translation (PAT) is used, allows remote attackers to discover intranet IP addresses via a packet with a small TTL, which triggers an ICMP_TIMXCEED_INTRANS (aka ICMP time exceeded in-transit) response containing an encapsulated IP packet with an intranet address, as demonstrated by a TCP packet to the firewall management server on port 18264.
Why it matters now
EPSS 0.01618 76th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:checkpoint:vpn-1:r55:*:*:*:*:*:*:* | r55 | Vulnerable | Check Point |
| cpe:2.3:a:checkpoint:vpn-1:r65:*:*:*:*:*:*:* | r65 | Vulnerable | Check Point |
- cpe:2.3:a:checkpoint:vpn-1:r55:*:*:*:*:*:*:* Versions r55 Vulnerable ·Check Point
- cpe:2.3:a:checkpoint:vpn-1:r65:*:*:*:*:*:*:* Versions r65 Vulnerable ·Check Point
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-5849
- 2026-10-03 Alias added: GHSA-2fwx-xc3r-67p8
References
More Check Point Vpn-1 vulnerabilities
- 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-2011-01603 Multiple unspecified vulnerabilities in Check Point SSL Network Extender (SNX)… CVSS 2.0HIGH 9.3
- 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-2008-5849 · CVE Program
- CVE-2008-5849 · NVD
- FIRST EPSS
- GHSA-2fwx-xc3r-67p8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences