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    CVE-2015-4236

    Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers to cause a denial of service (clustering and SSH outage) via a packet flood, aka Bug IDs CSCur13704 and CSCuq05636.

    Published:Jul 10, 2015
    Last Modified:Apr 12, 2025
    EPS:Jul 10, 2015
    EPSS Score:0.00603
    CVSS Score:4.3

    Affected Products

    Vendor
    Cisco
    Product
    Email Security Appliance
    Vendor
    Cisco
    Product
    Email Security Appliance Firmware

    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-2022-20798 (CVSS 9.8) — A vulnerability in the external authentication functionality of Cisco Secure Email and Web Manager, formerly k…
    CVE-2022-20664 (CVSS 7.7) — A vulnerability in the web management interface of Cisco Secure Email and Web Manager, formerly Cisco Security…
    CVE-2022-20675 (CVSS 5.3) — A vulnerability in the TCP/IP stack of Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA…
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    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