VULNERABILITY INTELLIGENCE
CVE-2008-5849
CVSS score5 MEDIUM
EPSS probability1.62%
CISA KEVNot currently listed
Published2009-01-06
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:N/A:N
Description
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.
Weakness classification
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor