CVE-2005-4570: n/a vulnerability

CVE-2005-4570: The Internet Key Exchange version 1 (IKEv1) implementations in Fortinet FortiOS 2.50, 2.80 and 3.0, FortiCl...

The Internet Key Exchange version 1 (IKEv1) implementations in Fortinet FortiOS 2.50, 2.80 and 3.0, FortiClient 2.0,; and FortiManager 2.80 and 3.0 allow remote attackers to cause a denial of service (termination of a process that is automatically restarted) via IKE packets with invalid values of certain IPSec attributes, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the vendor advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 23:53 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Fortinet IKEv1 denial-of-service issue. An attacker could disrupt affected VPN or management components by sending malformed IKE traffic, causing a process to terminate and automatically restart. The source bundle does not provide a CVSS score or confirmed active exploitation. Likely exposure is limited to organizations still running FortiOS 2.50, 2.80, or 3.0, FortiClient 2.0, or FortiManager 2.80 or 3.0 with IKEv1/IPsec reachable. The bundle does not provide CPEs or detailed product matrices. Treat this as a legacy exposure cleanup item unless affected Fortinet VPN services are still reachable from untrusted networks. Business urgency rises if old VPN infrastructure supports production access or remote work. Mitigation focus: Check Fortinet advisory guidance for affected legacy versions and fixes.; Identify and retire unsupported FortiOS, FortiClient, and FortiManager versions.; Restrict IKE/IPsec exposure to required trusted peers where operationally possible..

Prepared: Jun 29, 2026, 15:35 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 29, 2005, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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