FKIE_CVE-2006-3906
Vulnerability from fkie_nvd - Published: 2006-07-27 22:04 - Updated: 2026-06-16 22:28
Severity
Summary
Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected.
References
Impacted products
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"source": "cve@mitre.org"
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected."
},
{
"lang": "es",
"value": "Protocolo Internet Key Exchange (IKE) version 1, implementado para Cisco IOS, VPN 3000 Concentrators, y PIX firewalls, permite a atacantes remotos provocar denegaci\u00f3n de servicio (agotamiento de recursos) a trav\u00e9s de un flood de paquetes IKE Phase-1 que exceden el ratio de expiraci\u00f3n de la sesi\u00f3n. NOTA: se ha indicado que esto es debido a un dise\u00f1o debil del protocolo IKe version 1, en cuyo caso otros vendedores e implementaciones podr\u00edan verse afectados."
}
],
"id": "CVE-2006-3906",
"lastModified": "2026-06-16T22:28:03.097",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2006-07-27T22:04:00.000",
"references": [
{
"source": "cve@mitre.org",
"url": "http://archives.neohapsis.com/archives/bugtraq/2006-07/0531.html"
},
{
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"url": "http://securityreason.com/securityalert/1293"
},
{
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"url": "http://securitytracker.com/id?1016582"
},
{
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},
{
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"url": "http://www.nta-monitor.com/posts/2006/07/cisco-concentrator-dos.html"
},
{
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"url": "http://www.osvdb.org/29068"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/441203/100/0/threaded"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/19176"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27972"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5299"
},
{
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"url": "http://archives.neohapsis.com/archives/bugtraq/2006-07/0531.html"
},
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},
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"url": "http://www.cisco.com/en/US/tech/tk583/tk372/tsd_technology_security_response09186a00806f33d4.html"
},
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"url": "http://www.nta-monitor.com/posts/2006/07/cisco-concentrator-dos.html"
},
{
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"url": "http://www.osvdb.org/29068"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/441203/100/0/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/19176"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27972"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5299"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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