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    CVE-2008-3812

    Cisco IOS 12.4, when IOS firewall Application Inspection Control (AIC) with HTTP Deep Packet Inspection is enabled, allows remote attackers to cause a denial of service (device reload) via a malformed HTTP transit packet.

    Published:Sep 26, 2008
    Last Modified:Apr 23, 2026
    EPS:Sep 26, 2008
    EPSS Score:0.0146
    CVSS Score:7.1

    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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    CVE-2025-20327 (CVSS 7.7) — A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low pri…
    CVE-2025-20352 (CVSS 7.7) — A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS…
    CVE-2025-20160 (CVSS 8.1) — A vulnerability in the implementation of the TACACS+ protocol in Cisco IOS Software and Cisco IOS XE Software …
    CVE-2025-20253 (CVSS 8.6) — A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and…
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    References

    http://secunia.com/advisories/31990
    http://tools.cisco.com/security/center/viewAlert.x?alertId=16661
    http://www.cisco.com/en/US/products/products_security_advisory09186a0080a01545.shtml
    http://www.securityfocus.com/bid/31354
    http://www.securitytracker.com/id?1020929
    http://www.vupen.com/english/advisories/2008/2670
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5302
    http://secunia.com/advisories/31990
    http://tools.cisco.com/security/center/viewAlert.x?alertId=16661
    http://www.cisco.com/en/US/products/products_security_advisory09186a0080a01545.shtml
    http://www.securityfocus.com/bid/31354
    http://www.securitytracker.com/id?1020929
    http://www.vupen.com/english/advisories/2008/2670
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5302

    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