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    CVE-2005-3669

    Multiple unspecified vulnerabilities in the Internet Key Exchange version 1 (IKEv1) implementation in multiple Cisco products allow remote attackers to cause a denial of service (device reset) via certain malformed IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the Cisco advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

    Published:Nov 18, 2005
    Last Modified:Apr 16, 2026
    EPS:Nov 18, 2005
    EPSS Score:0.09461
    CVSS Score:5

    Affected Products

    Vendor
    Cisco
    Product
    Adaptive Security Appliance Software
    Vendor
    Cisco
    Product
    Firewall Services Module
    Vendor
    Cisco
    Product
    Ios
    Vendor
    Cisco
    Product
    Mds 9000
    Vendor
    Cisco
    Product
    Mds 9000 San-os
    Vendor
    Cisco
    Product
    Pix Firewall
    Vendor
    Cisco
    Product
    Pix Firewall Software
    Vendor
    Cisco
    Product
    Vpn 3000 Concentrator Series Software

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-20024 (CVSS 6.8) — A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could…
    CVE-2026-20023 (CVSS 6.1) — A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and C…
    CVE-2026-20022 (CVSS 6.1) — A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could…
    CVE-2026-20021 (CVSS 4.3) — A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and C…
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    References

    http://jvn.jp/niscc/NISCC-273756/index.html
    http://secunia.com/advisories/17553
    http://securitytracker.com/id?1015198
    http://securitytracker.com/id?1015199
    http://securitytracker.com/id?1015200
    http://securitytracker.com/id?1015201
    http://securitytracker.com/id?1015202
    http://www.cisco.com/warp/public/707/cisco-sa-20051114-ipsec.shtml
    http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
    http://www.kb.cert.org/vuls/id/226364
    http://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=en
    http://www.securityfocus.com/bid/15401
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5226
    http://jvn.jp/niscc/NISCC-273756/index.html
    http://secunia.com/advisories/17553
    http://securitytracker.com/id?1015198
    http://securitytracker.com/id?1015199
    http://securitytracker.com/id?1015200
    http://securitytracker.com/id?1015201
    http://securitytracker.com/id?1015202
    http://www.cisco.com/warp/public/707/cisco-sa-20051114-ipsec.shtml
    http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
    http://www.kb.cert.org/vuls/id/226364
    http://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=en
    http://www.securityfocus.com/bid/15401
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5226

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High