CVE-2015-6420

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Summary

CVECVE-2015-6420
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-12-15 05:59:07 UTC
Updated2026-10-07 18:17:07 UTC
DescriptionSerialized-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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.187630000 probability, percentile 0.972110000 (date 2026-10-07)

Problem Types: CWE-502 | n/a | CWE-502 CWE-502 Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Commons Collections All All All All
Application Apache Commons Collections 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[R1] Cisco Unified Customer Voice Portal Java Deserialization Remote Code Execution - Research Advisory | Tenable® af854a3a-2127-422b-91ae-364da2661108 www.tenable.com Third Party Advisory
[R1] Cisco Security Manager and Prime LMS Java Deserialization Remote Code Execution - Research Advisory | Tenable® af854a3a-2127-422b-91ae-364da2661108 www.tenable.com Third Party Advisory
Multiple Cisco Products CVE-2015-6420 Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
www.kb.cert.org/vuls/id/576313 af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory
Pony Mail! af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Vendor Advisory
Vulnerability in Java Deserialization Affecting Cisco Products af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Third Party Advisory
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com Third Party Advisory
foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-a... af854a3a-2127-422b-91ae-364da2661108 foxglovesecurity.com Exploit, Third Party Advisory
CERT Vulnerability Notes Database af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory
CPU July 2018 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com Third Party Advisory
news.apache.org/foundation/entry/apache_commons_statement_to_widespread af854a3a-2127-422b-91ae-364da2661108 news.apache.org Vendor Advisory
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 92029 Microsoft SQL Server Multiple Vulnerabilities
  • 983466 Java (maven) Security Update for commons-collections:commons-collections (GHSA-6hgm-866r-3cjv)

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