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.
CVE-2005-3673 is a security vulnerability that . Impacting 5 products from checkpoint, from checkpoint, from checkpoint and 2 others, organizations running these solutions should prioritize assessment and patching.
Originally identified in 2005, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2005-11-18T21:03:00.000
2026-04-16T00:27:16.627
Modified
CVSSv2: 7.8 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | checkpoint | check_point | * | Yes |
| Application | checkpoint | express | ci_r57 | Yes |
| Application | checkpoint | firewall-1 | 3.0 | Yes |
| Application | checkpoint | vpn-1 | ngx_r60 | Yes |
| Application | checkpoint | vpn-1_firewall-1_next_generation | r54 | Yes |
| Application | checkpoint | vpn-1_firewall-1_next_generation | r55 | Yes |
| Application | checkpoint | vpn-1_firewall-1_next_generation | r55p | Yes |
| Application | checkpoint | vpn-1_firewall-1_next_generation | r55w | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For checkpoint's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.