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    CVE-2015-6420

    Serialized-object interfaces in certain Cisco Collaboration and Social Media; Endpoint Clients and Client Software; Network Application, Service, and Acceleration; Network and Content Security Devices; Network Management and Provisioning; Routing and Switching - Enterprise and Service Provider; Unified Computing; Voice and Unified Communications Devices; Video, Streaming, TelePresence, and Transcoding Devices; Wireless; and Cisco Hosted Services products allow remote attackers to execute arbitrary commands via a crafted serialized Java object, related to the Apache Commons Collections (ACC) library.

    Published:Dec 15, 2015
    Last Modified:Feb 24, 2026
    EPS:Dec 15, 2015
    EPSS Score:0.1649
    CVSS Score:9.8

    Affected Products

    Vendor
    Apache
    Product
    Commons Collections

    Exploits

    https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/https://github.com/Leeziao/CVE-2015-6420

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    References

    http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserialization
    http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
    http://www.securityfocus.com/bid/78872
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
    https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21%40%3Ccommits.samza.apache.org%3E
    https://www.kb.cert.org/vuls/id/581311
    https://www.tenable.com/security/research/tra-2017-14
    https://www.tenable.com/security/research/tra-2017-23
    http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserialization
    http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
    http://www.securityfocus.com/bid/78872
    https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
    https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21%40%3Ccommits.samza.apache.org%3E
    https://news.apache.org/foundation/entry/apache_commons_statement_to_widespread
    https://www.kb.cert.org/vuls/id/576313
    https://www.kb.cert.org/vuls/id/581311
    https://www.tenable.com/security/research/tra-2017-14
    https://www.tenable.com/security/research/tra-2017-23

    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