CVE-2012-0391
CISA KEVPublished January 21, 2022 · Updated April 3, 2026
high
Official Description+
The ExceptionDelegator component in Apache Struts 2 before 2.2.3.1 contains an improper input validation vulnerability that allows for remote code execution.
Affected Products
| Vendor | Product |
|---|---|
| Apache | Struts 2 |
Patch Status
Patch by 2022-07-21
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2012-0391.