CVE-2017-9791
CriticalExploitedPublic exploitCode execution in Apache Struts 1 plugin
Published May 13, 2022 · Updated Jul 8, 2026 · Also known as GHSA-29rm-6752-gvwv
Key Facts
Patch immediately- CVE-2017-9791 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Struts (Apache), org.apache.struts:struts2-struts1-plugin (maven).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 24, 2020. Public exploit code is available.
- EPSS estimates a 99% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
99%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-9791 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 10, 2022 | Aug 10, 2022 | Not reported |
| Industry KEV feed | Jun 24, 2020 | Aug 10, 2022 | Not reported |
| CIRCL KEV | Feb 10, 2022 | Aug 10, 2022 | Not reported |
| ENISA EUVD | Feb 10, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
35 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| StrutsApache | 2.3.1, 2.3.1.1, 2.3.1.2, 2.3.12, 2.3.14, 2.3.14.1, 2.3.14.2, 2.3.14.3 | n/a |
| org.apache.struts:struts2-struts1-pluginmaven | See advisory | n/a |
Timeline
Added to Industry KEV feed
Jun 24, 2020
Added to CISA KEV
Feb 10, 2022
Added to CIRCL KEV
Feb 10, 2022
Added to ENISA EUVD
Feb 10, 2022
Publicly disclosed
May 13, 2022
Last updated
Jul 8, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2017-9791
- advisoryhttps://security.netapp.com/advisory/ntap-20180706-0002/
- advisory42324
- advisory44643
FAQ
Common Questions.
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.
Affected: Struts (Apache) versions 2.3.1, 2.3.1.1, 2.3.1.2, 2.3.12, 2.3.14, 2.3.14.1, 2.3.14.2, 2.3.14.3; org.apache.struts:struts2-struts1-plugin (maven). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 24, 2020.
Yes. It was added on Feb 10, 2022 with a federal remediation due date of Aug 10, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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