CVE-2008-5849
Check Point VPN-1 R55, R65, and other versions, when Port Address Translation (PAT) is used,...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2008-5849- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2008-5849- Updated
- 2026-11-02
EUVDEUVD-2008-5819 No score
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.
- Record
EUVD-2008-5819- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2fwx-xc3r-67p8 No score
Check Point VPN-1 R55, R65, and other versions, when Port Address Translation (PAT) is used,...
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.
- Record
GHSA-2fwx-xc3r-67p8- Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2008-5849 is a medium vulnerability (CVSS 5.0) in Checkpoint Vpn-1, published January 6, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. No source names a fixed version.
References
supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk36321
secunia.com/advisories/32728
exchange.xforce.ibmcloud.com/vulnerabilities/46645
portcullis-security.com/293.php
securityfocus.com/bid/32306
svn.wald.intevation.org/svn/openvas/trunk/openvas-plugins/scripts/checkpoint-vpn1-pat-information-disclosure.nasl
vupen.com/english/advisories/2008/3229
nvd.nist.gov/vuln/detail/CVE-2008-5849
github.com/advisories/GHSA-2fwx-xc3r-67p8