How serious is CVE-2015-6420?

This vulnerability has a CVSS score of 9.8 out of 10, classified as CRITICAL severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2015-6420?

Yes, proof-of-concept exploit code for CVE-2015-6420 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2015-6420?

CVE-2015-6420 affects apache commons collections. Check the full CVE details for specific version information.

How do I fix CVE-2015-6420?

To remediate CVE-2015-6420, check for security patches from apache. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2015-6420

Critical

|9.8

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows attackers to remotely execute any command on affected Cisco products by sending a specially crafted Java object. It primarily affects systems that use the Apache Commons Collections library and can be exploited if the attacker can send data to the vulnerable service.

Technical 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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeUnchanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$13,000($5K-$15K)

Vendor Response

Grade FPatched in 3724 days

Quick Information

Published

Dec 15, 2015

over 10 years ago

Last Modified

Feb 24, 2026

about 1 month ago

Vendor

apache

Product

commons collections

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