Home › Exploited CVEs › CVE-2012-0391
CVE-2012-0391: Apache Struts 2 Improper Input Validation Vulnerability
Apache Struts 2 · in CISA KEV since 2022-01-21
2022-01-21added to KEV
2022-07-21federal remediation due date
75.60%EPSS exploit probability (30 days) 99.5th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
3,666days from NVD publication to KEV
What it is
The ExceptionDelegator component in Apache Struts 2 before 2.2.3.1 contains an improper input validation vulnerability that allows for remote code execution.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2012-01-08 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2012-0391.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.