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.

• CWE-502

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserializationThird Party Advisory
• http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlThird Party Advisory
• http://www.securityfocus.com/bid/78872Third Party Advisory, VDB Entry
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917Third Party Advisory
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
• https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21%40%3Ccommits.samza.apache.org%3EVendor Advisory
• https://www.kb.cert.org/vuls/id/581311Third Party Advisory
• https://www.tenable.com/security/research/tra-2017-14Third Party Advisory
• https://www.tenable.com/security/research/tra-2017-23Third Party Advisory
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserializationThird Party Advisory
• http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlThird Party Advisory
• http://www.securityfocus.com/bid/78872Third Party Advisory, VDB Entry
• https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/Exploit, Third Party Advisory
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917Third Party Advisory
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
• https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21%40%3Ccommits.samza.apache.org%3EVendor Advisory
• https://news.apache.org/foundation/entry/apache_commons_statement_to_widespreadVendor Advisory
• https://www.kb.cert.org/vuls/id/576313Third Party Advisory
• https://www.kb.cert.org/vuls/id/581311Third Party Advisory
• https://www.tenable.com/security/research/tra-2017-14Third Party Advisory
• https://www.tenable.com/security/research/tra-2017-23Third Party Advisory

Published

Dec 15, 2015

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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