CVE-2005-3732: n/a vulnerability

CVE-2005-3732: The Internet Key Exchange version 1 (IKEv1) implementation (isakmp_agg.c) in racoon in ipsec-tools before 0...

The Internet Key Exchange version 1 (IKEv1) implementation (isakmp_agg.c) in racoon in ipsec-tools before 0.6.3, when running in aggressive mode, allows remote attackers to cause a denial of service (null dereference and crash) via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 23:24 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2005-3732 is a denial-of-service flaw in racoon from ipsec-tools. If an affected VPN endpoint runs IKEv1 aggressive mode, a remote attacker could send malformed IKE traffic that crashes the service. The business impact is VPN outage, not data theft based on the provided sources. Exposure is most likely on legacy systems using racoon from ipsec-tools before 0.6.3 with IKEv1 aggressive mode enabled and reachable by untrusted networks. The source bundle does not identify affected CPEs or a complete product matrix. Treat this as a legacy VPN availability risk. Prioritize exposed VPN gateways and older Unix/Linux systems first. It is not documented here as data compromise or active exploitation, but a crashable VPN service can still disrupt remote access and site connectivity. Mitigation focus: Upgrade ipsec-tools/racoon to version 0.6.3 or later where applicable.; Apply fixed vendor packages from relevant distribution advisories.; Disable IKEv1 aggressive mode if it is not required..

Prepared: Jun 29, 2026, 16:32 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: Nov 21, 2005, 22:00 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

3Source 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
oval:org.mitre.oval:def:9857CVE reference · vdb-entry, signature
USN-221-1CVE reference · vendor-advisory, x_refsource_UBUNTU

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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