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CVE-2015-6420

Published: Dec 15, 2015Updated: Feb 24, 2026 Sources: CVE List NVD GHSA BDUCWE-502
9.8CRITICAL
NVD MITRE
EPSS Score
18.8%
Top 3.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

Cisco Systems Inc.
commercial·USaka cisco systems, cisco
Cisco Prime License Manager
Networking Infrastructure
Unified Communications Manager
Networking Infrastructure
Cisco Hosted Collaboration Mediation Fulfillment
Networking Infrastructure
Unified Contact Center Express
Networking Infrastructure
Cisco Registered Envelope Service
Networking Infrastructure
Unified Communications Domain Manager
Networking Infrastructure
Cisco WebEx Meetings Server
Networking Infrastructure
Cisco Prime Home
Networking Infrastructure
Maven
package-ecosystem
org.apache.commons:commons-collections4
OSS Libraries
commons-collections:commons-collections
OSS Libraries
net.sourceforge.collections:collections-generic
OSS Libraries
org.apache.servicemix.bundles:org.apache.servicemix.bundles.collections-generic
OSS Libraries
org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-collections
OSS Libraries
Oracle Corp.
commercial·USaka oracle
Hospitality Reporting and AnalyticsOn-premWeb App
Enterprise Software / itsm-monitoring
Hospitality Gift and LoyaltyOn-premWeb App
Enterprise Software / itsm-monitoring
Apache Software Foundation
oss-project·USaka apache foundation
Commons CollectionsOn-premLibrary
OSS Libraries / generic-library
apache
oss-project·USaka apache http server, apache httpd
commons collectionsLibraryLibrary
OSS Libraries / generic-library
and 13 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Scannable·OpenVAS
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-ibm-websphere-extreme-scale-liberty-deployment/
ibm.com
https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21@%3Ccommits.samza.apache.org%3E
lists.apache.org
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserialization
tools.cisco.com
and 15 more references View all →
News mentions
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