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CVE-2016-4437: Apache Shiro Code Execution Vulnerability
Apache Shiro · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
93.04%EPSS exploit probability (30 days) 99.8th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
1,975days from NVD publication to KEV
What it is
Apache Shiro contains a vulnerability which may allow remote attackers to execute code or bypass intended access restrictions via an unspecified request parameter when a cipher key has not been configured for the "remember me" feature.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-284 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2016-06-07 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2016-4437.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.