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    CVE-2001-0864

    Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions.

    Published:Dec 6, 2001
    Last Modified:Apr 16, 2026
    EPS:Mar 9, 2002
    EPSS Score:0.00602
    CVSS Score:7.5

    Affected Products

    Vendor
    Cisco
    Product
    12000 Router

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2001-0862 (CVSS 7.5) — Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not block non-initial packet fragments, which …
    CVE-2001-0867 (CVSS 7.5) — Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly filter does not properly filter p…
    CVE-2001-0861 (CVSS 5) — Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a deni…
    CVE-2001-0865 (CVSS 7.5) — Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not support the "fragment" keyword in an outgo…
    CVE-2001-0866 (CVSS 7.5) — Cisco 12000 with IOS 12.0 and lines card based on Engine 2 does not properly handle an outbound ACL when an in…
    CVE-2001-0863 (CVSS 5) — Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not handle the "fragment" keyword in a compile…

    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