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    CVE-2009-2872

    Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.

    Published:Sep 28, 2009
    Last Modified:Apr 23, 2026
    EPS:Sep 28, 2009
    EPSS Score:0.01257
    CVSS Score:6.8

    Affected Products

    Vendor
    Cisco
    Product
    Ios

    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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    References

    http://osvdb.org/58333
    http://tools.cisco.com/security/center/viewAlert.x?alertId=18893
    http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html
    http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8115.shtml
    http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html
    http://www.securitytracker.com/id?1022930
    http://www.vupen.com/english/advisories/2009/2759
    http://osvdb.org/58333
    http://tools.cisco.com/security/center/viewAlert.x?alertId=18893
    http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html
    http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8115.shtml
    http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html
    http://www.securitytracker.com/id?1022930
    http://www.vupen.com/english/advisories/2009/2759

    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