CVE-2016-4437

Apache — Apache Shiro Code Execution Vulnerability

CISA KEV · in the CISA KEV catalog since 2021-11-03

What EVULNABLE says

EVULNABLE Risk · priority 85/100 Immediate Intelligence coverage 75/90 — no pre-patch disclosure data
ExigentOverdue by 4.3 yearsCISA KEVActively Exploited

Why it matters: Listed in the CISA KEV catalog, and an EPSS probability of 0.930.

Out-of-Band / Urgent Remediation

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2016-4437
MeasureValueSource
CVSS base score 9.8 NVD
FIRST EPSS 0.930 (99.83rd pctl) FIRST
Actively exploited Confirmed CISA KEV
Ransomware campaign use Unknown or none CISA KEV
CISA remediation deadline 2022-05-03 — Overdue by 4.3 years CISA KEV
Intelligence coverage 75/90 — no pre-patch disclosure data

What CISA says to do

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.