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Case File

CVE-2015-6420

CRITICAL · CVSS 9.8 EPSS 18.07%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2015-12-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Cisco, Apache, Java. Its EPSS score suggests a 18.1% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2015-6420
Severity
CRITICAL
CVSS
9.8
EPSS
18.07%
Cisco Apache Java

Original NVD 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.