CVE-2005-3673

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2005-11-18 · updated 2026-06-16

Description

The Internet Key Exchange version 1 (IKEv1) implementation in Check Point products allows remote attackers to cause a denial of service via certain crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

Affected products

checkpoint Check Point: all versions
checkpoint Express: ci_r57
checkpoint Firewall-1: 3.0
checkpoint Vpn-1: ngx_r60
checkpoint Vpn-1 Firewall-1 Next Generation: r54, r55, r55p, r55w

References

http://jvn.jp/niscc/NISCC-273756/index.html
http://secunia.com/advisories/17621
http://secureknowledge.us.checkpoint.com/SecureKnowledge/viewSolutionDocument.do?id=sk31316
http://securitytracker.com/id?1015235
http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
http://www.kb.cert.org/vuls/id/226364
http://www.niscc.gov.uk/niscc/docs/re-20051114-01014.pdf?lang=en
http://www.securityfocus.com/bid/15479
http://www.vupen.com/english/advisories/2005/2470
http://jvn.jp/niscc/NISCC-273756/index.html
http://secunia.com/advisories/17621
http://secureknowledge.us.checkpoint.com/SecureKnowledge/viewSolutionDocument.do?id=sk31316

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