CVE-2006-3906

high

Description

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

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5299

https://exchange.xforce.ibmcloud.com/vulnerabilities/27972

http://www.securityfocus.com/bid/19176

http://www.securityfocus.com/archive/1/441203/100/0/threaded

http://www.osvdb.org/29068

http://www.nta-monitor.com/posts/2006/07/cisco-concentrator-dos.html

http://www.cisco.com/en/US/tech/tk583/tk372/tsd_technology_security_response09186a00806f33d4.html

http://securitytracker.com/id?1016582

http://securityreason.com/securityalert/1293

http://archives.neohapsis.com/archives/bugtraq/2006-07/0531.html

Details

Source: Mitre, NVD

Published: 2006-07-27

Updated: 2026-04-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.02852