CVE DATABASE / CVE-2017-9791
CVE-2017-9791
Apache Struts 1 Improper Input Validation Vulnerability
CVSS 9.8 · CRITICAL
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2022-02-10.
Federal remediation due 2022-08-10.
Required action: Apply updates per vendor instructions.
Summary
The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.
CVSS 3.1 breakdown
| Base score | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Apache struts
Check this CVE live
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References
- http://struts.apache.org/docs/s2-048.html
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- http://www.securityfocus.com/bid/99484
- http://www.securitytracker.com/id/1038838
- https://security.netapp.com/advisory/ntap-20180706-0002/
- https://www.exploit-db.com/exploits/42324/
- https://www.exploit-db.com/exploits/44643/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9791
Data: NIST NVD + CISA KEV. NVD last modified 2026-04-21. Always verify against the vendor advisory before acting.