CVE-2017-9791

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

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 v3: 9.8
EG Score: 9.8(high)
EPSS: 99.9%
KEV: ⚠ Exploited

Published

July 10, 2017

Last Modified

April 21, 2026

Advisory Details (5)

Auto-updated Apr 30, 2026

🔬 Proof of concept available. No patch confirmed yet.

generic

http://www.securityfocus.com/bid/99484

generic

S2-048 - Apache Struts 2 Wiki - Apache Software Foundation

http://struts.apache.org/docs/s2-048.html

generic🟡 PoC Available

Apache Struts 2 - Struts 1 Plugin Showcase OGNL Code Execution (Metasploit) - Multiple remote Exploit

https://www.exploit-db.com/exploits/44643/

generic🟡 PoC Available

Apache Struts 2.3.x Showcase - Remote Code Execution - Multiple webapps Exploit

https://www.exploit-db.com/exploits/42324/

generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20180706-0002/

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
maven	org.apache.struts:struts2-struts1-plugin	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.apache.struts:struts2-struts1-plugin	2.0.11 ... 2.3.8 (55 versions)	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-08 17:26 UTCkev_newly_listed
2026-06-08 14:31 UTCEG score recompute
2026-06-08 14:31 UTCGHSA enrichment
2026-06-08 10:44 UTCEG score recompute
2026-06-08 10:44 UTCGHSA enrichment
2026-06-08 06:57 UTCEG score recompute
2026-06-08 06:57 UTCGHSA enrichment
2026-06-08 03:10 UTCEG score recompute
2026-06-08 03:10 UTCGHSA enrichment
2026-06-07 23:24 UTCEG score recompute
2026-06-07 23:24 UTCGHSA enrichment
2026-06-07 19:37 UTCEG score recompute
2026-06-07 19:37 UTCGHSA enrichment
2026-06-07 15:51 UTCEG score recompute
2026-06-07 15:51 UTCGHSA enrichment
2026-06-07 12:04 UTCEG score recompute
2026-06-07 12:04 UTCGHSA enrichment
2026-06-07 08:18 UTCEG score recompute
2026-06-07 08:18 UTCGHSA enrichment
2026-06-07 04:31 UTCEG score recompute

Publicly available exploits

(6 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-44643✓ verified
First seen May 17, 2018
Apache Struts 2 - Struts 1 Plugin Showcase OGNL Code Execution (Metasploit)
Open source ↗
Exploit-DBEDB-42324✓ verified
First seen Jul 7, 2017
Apache Struts 2.3.x Showcase - Remote Code Execution
Open source ↗
GitHub PoCdragoneeg/Struts2-048
First seen Jul 7, 2017
CVE-2017-9791
Open source ↗
GitHub PoCIanSmith123/s2-048
First seen Jul 7, 2017
Apache struts struts 2 048, CVE-2017-9791.
Open source ↗
Metasploitexploit/multi/http/struts2_code_exec_showcase✓ verified
First seen Jul 7, 2017
Apache Struts 2 Struts 1 Plugin Showcase OGNL Code Execution
Open source ↗
Nucleihttp/cves/2017/CVE-2017-9791.yaml
First seen Jan 1, 2017
Apache Struts2 S2-053 - Remote Code Execution
Open source ↗

Frequently asked(6)

What is CVE-2017-9791?

CVE-2017-9791 is a critical vulnerability published on July 10, 2017. 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.

When was CVE-2017-9791 disclosed?

CVE-2017-9791 was first published in the National Vulnerability Database on July 10, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2017-9791 actively exploited?

Yes. CISA added CVE-2017-9791 to the Known Exploited Vulnerabilities catalog on February 10, 2022, affecting Apache Struts 1. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2017-9791?

CVE-2017-9791 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2017-9791?

CVE-2017-9791 affects Apache Struts 1. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2017-9791?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-9791, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-9791

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CVE-2017-9791

📅 Published

🔄 Last Modified

📋 Advisory Details (5)

S2-048 - Apache Struts 2 Wiki - Apache Software Foundation

Apache Struts 2 - Struts 1 Plugin Showcase OGNL Code Execution (Metasploit) - Multiple remote Exploit

Apache Struts 2.3.x Showcase - Remote Code Execution - Multiple webapps Exploit

NetApp Product Security

Patch Availability(1)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2017-9791?

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Advisory Details (5)

Frequently asked(6)

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