CVE-2017-9791

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-02-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 99%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
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 / EcosystemFixed in / PatchReleasedSource
mavenorg.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)
PackageVulnerable rangeFixed inDependents
org.apache.struts:struts2-struts1-plugin2.0.11 ... 2.3.8 (55 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 37× in last 7d / 199× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 403 total refreshes for this CVE.

  1. 2026-07-23 01:31 UTCEG score recompute
  2. 2026-07-23 00:07 UTCEG score recompute
  3. 2026-07-23 00:07 UTCGHSA enrichment
  4. 2026-07-22 22:11 UTCEG score recompute
  5. 2026-07-22 20:20 UTCGHSA enrichment
  6. 2026-07-22 19:40 UTCCISA KEV update
  7. 2026-07-22 16:32 UTCGHSA enrichment
  8. 2026-07-22 12:45 UTCGHSA enrichment
  9. 2026-07-22 08:58 UTCGHSA enrichment
  10. 2026-07-22 05:12 UTCGHSA enrichment
  11. 2026-07-22 01:10 UTCGHSA enrichment
  12. 2026-07-21 21:22 UTCGHSA enrichment
  13. 2026-07-21 17:34 UTCGHSA enrichment
  14. 2026-07-21 14:37 UTCCISA KEV update
  15. 2026-07-21 13:46 UTCGHSA enrichment
  16. 2026-07-21 10:00 UTCGHSA enrichment
  17. 2026-07-21 06:11 UTCGHSA enrichment
  18. 2026-07-21 02:23 UTCGHSA enrichment
  19. 2026-07-20 22:36 UTCGHSA enrichment
  20. 2026-07-20 18:49 UTCGHSA enrichment
  21. 2026-07-20 15:02 UTCGHSA enrichment
  22. 2026-07-20 11:13 UTCGHSA enrichment
  23. 2026-07-20 07:25 UTCGHSA enrichment
  24. 2026-07-20 03:38 UTCGHSA enrichment
  25. 2026-07-19 23:51 UTCGHSA enrichment
Show 75 more
  1. 2026-07-19 20:05 UTCGHSA enrichment
  2. 2026-07-19 16:16 UTCGHSA enrichment
  3. 2026-07-19 12:17 UTCGHSA enrichment
  4. 2026-07-19 08:29 UTCGHSA enrichment
  5. 2026-07-19 04:42 UTCGHSA enrichment
  6. 2026-07-19 00:55 UTCGHSA enrichment
  7. 2026-07-18 21:08 UTCGHSA enrichment
  8. 2026-07-18 17:21 UTCGHSA enrichment
  9. 2026-07-18 13:34 UTCGHSA enrichment
  10. 2026-07-18 09:46 UTCGHSA enrichment
  11. 2026-07-18 05:59 UTCGHSA enrichment
  12. 2026-07-18 02:12 UTCGHSA enrichment
  13. 2026-07-17 22:25 UTCGHSA enrichment
  14. 2026-07-17 18:38 UTCGHSA enrichment
  15. 2026-07-17 14:51 UTCGHSA enrichment
  16. 2026-07-17 11:02 UTCGHSA enrichment
  17. 2026-07-17 07:15 UTCEG score recompute
  18. 2026-07-17 07:15 UTCGHSA enrichment
  19. 2026-07-17 03:29 UTCGHSA enrichment
  20. 2026-07-16 23:42 UTCGHSA enrichment
  21. 2026-07-16 19:55 UTCGHSA enrichment
  22. 2026-07-16 17:04 UTCCISA KEV update
  23. 2026-07-16 16:07 UTCGHSA enrichment
  24. 2026-07-16 12:19 UTCGHSA enrichment
  25. 2026-07-16 08:31 UTCGHSA enrichment
  26. 2026-07-16 04:44 UTCGHSA enrichment
  27. 2026-07-16 00:57 UTCGHSA enrichment
  28. 2026-07-15 21:10 UTCGHSA enrichment
  29. 2026-07-15 17:23 UTCGHSA enrichment
  30. 2026-07-15 16:55 UTCEPSS rescore
  31. 2026-07-15 16:54 UTCEPSS rescore
  32. 2026-07-15 16:49 UTCCISA KEV update
  33. 2026-07-15 15:04 UTCCISA KEV update
  34. 2026-07-15 13:34 UTCGHSA enrichment
  35. 2026-07-15 09:46 UTCGHSA enrichment
  36. 2026-07-15 05:59 UTCGHSA enrichment
  37. 2026-07-15 02:10 UTCGHSA enrichment
  38. 2026-07-14 22:22 UTCGHSA enrichment
  39. 2026-07-14 18:35 UTCGHSA enrichment
  40. 2026-07-14 18:05 UTCCISA KEV update
  41. 2026-07-14 14:48 UTCGHSA enrichment
  42. 2026-07-14 11:00 UTCGHSA enrichment
  43. 2026-07-14 07:11 UTCGHSA enrichment
  44. 2026-07-14 03:24 UTCGHSA enrichment
  45. 2026-07-13 23:38 UTCGHSA enrichment
  46. 2026-07-13 19:51 UTCGHSA enrichment
  47. 2026-07-13 17:07 UTCCISA KEV update
  48. 2026-07-13 16:03 UTCGHSA enrichment
  49. 2026-07-13 12:14 UTCGHSA enrichment
  50. 2026-07-13 08:26 UTCGHSA enrichment
  51. 2026-07-13 04:39 UTCGHSA enrichment
  52. 2026-07-13 00:51 UTCGHSA enrichment
  53. 2026-07-12 21:03 UTCGHSA enrichment
  54. 2026-07-12 17:15 UTCGHSA enrichment
  55. 2026-07-12 13:28 UTCGHSA enrichment
  56. 2026-07-12 09:40 UTCGHSA enrichment
  57. 2026-07-12 05:53 UTCGHSA enrichment
  58. 2026-07-12 02:06 UTCGHSA enrichment
  59. 2026-07-11 22:18 UTCGHSA enrichment
  60. 2026-07-11 18:31 UTCGHSA enrichment
  61. 2026-07-11 14:44 UTCGHSA enrichment
  62. 2026-07-11 10:57 UTCGHSA enrichment
  63. 2026-07-11 08:24 UTCEPSS rescore
  64. 2026-07-11 07:09 UTCGHSA enrichment
  65. 2026-07-11 03:22 UTCGHSA enrichment
  66. 2026-07-10 23:34 UTCGHSA enrichment
  67. 2026-07-10 19:46 UTCGHSA enrichment
  68. 2026-07-10 17:52 UTCCISA KEV update
  69. 2026-07-10 16:00 UTCGHSA enrichment
  70. 2026-07-10 12:13 UTCGHSA enrichment
  71. 2026-07-10 08:25 UTCGHSA enrichment
  72. 2026-07-10 04:38 UTCGHSA enrichment
  73. 2026-07-10 00:47 UTCGHSA enrichment
  74. 2026-07-09 20:57 UTCGHSA enrichment
  75. 2026-07-09 17:09 UTCGHSA enrichment

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 ↗

Related CVEs(same CWE)

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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