Known Exploited Vulnerability: CVE-2016-4437

Apache Shiro Code Execution Vulnerability

Catalog version: 2026.06.18 Date added: 2021-11-03 Due date: 2022-05-03 CISA catalog

Vendor: Apache

Product: Shiro

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: Unknown

Notes: https://nvd.nist.gov/vuln/detail/CVE-2016-4437

CWEs

cvelogic Threat Intelligence