CVE-2017-9805

CRITICALNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Exploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 8.1Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.

CVSS v3
8.1
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA SSVC

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
99%
EPSS %ILE
99th
KEV
⚠ Exploited

CISA SSVCTrack at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 15, 2017

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: redhat.
generic🔴 Active Exploitation

Multiple Vulnerabilities in Apache Struts 2 Affecting Cisco Products: September 2017

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
generic

S2-052 - Apache Struts 2 Wiki - Apache Software Foundation

https://struts.apache.org/docs/s2-052.html
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20170907-0001/
generic

S2-052 - Apache Struts 2 Wiki - Apache Software Foundation

https://cwiki.apache.org/confluence/display/WW/S2-052
redhat

1488482 – (CVE-2017-9805) CVE-2017-9805 struts: RCE attack via REST plugin with XStream handler to deserialise XML requests

https://bugzilla.redhat.com/show_bug.cgi?id=1488482
generic🔴 Active Exploitation

Apache Struts Statement on Equifax Security Breach - The ASF Blog

https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
generic
http://www.securitytracker.com/id/1039263
generic
http://www.securityfocus.com/bid/100609

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.struts:struts2-rest-plugin2.5 ... 2.5.8 (8 versions)
  • 2.1.1 up to 2.3.34: fixed in 2.3.34
  • 2.5.0 up to 2.5.13: fixed in 2.5.13
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 0× in last 7d / 15× 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 112 total refreshes for this CVE.

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

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (7 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/multi/http/struts2_rest_xstream✓ verified
    First seen Sep 5, 2017

    Apache Struts 2 REST Plugin XStream RCE

    Open source ↗
  • GitHub PoCShakun8/CVE-2017-9805
    First seen Oct 3, 2022

    CVE-2017-9805 POC

    Open source ↗
  • GitHub PoCchrisjd20/cve-2017-9805.py
    First seen Dec 4, 2017

    Better Exploit Code For CVE 2017 9805 apache struts

    Open source ↗
  • GitHub PoC0x00-0x00/-CVE-2017-9805
    First seen Nov 24, 2017

    Exploit script for Apache Struts2 REST Plugin XStream RCE (‎CVE-2017-9805)

    Open source ↗
  • GitHub PoCLone-Ranger/apache-struts-pwn_CVE-2017-9805
    First seen Sep 10, 2017

    An exploit for Apache Struts CVE-2017-9805

    Open source ↗
  • GitHub PoCmazen160/struts-pwn_CVE-2017-9805
    First seen Sep 9, 2017

    An exploit for Apache Struts CVE-2017-9805

    Open source ↗
  • GitHub PoChahwul/struts2-rce-cve-2017-9805-ruby
    First seen Sep 7, 2017

    cve -2017-9805

    Open source ↗
  • Exploit-DBEDB-42627
    First seen Sep 6, 2017

    Apache Struts 2.5 < 2.5.12 - REST Plugin XStream Remote Code Execution

    Open source ↗
  • GitHub PoCluc10/struts-rce-cve-2017-9805
    First seen Sep 6, 2017

    CVE 2017-9805

    Open source ↗
  • Nucleihttp/cves/2017/CVE-2017-9805.yaml
    First seen Jan 1, 2017

    Apache Struts2 S2-052 - Remote Code Execution

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(6)

What is CVE-2017-9805?
CVE-2017-9805 is a critical vulnerability published on September 15, 2017. The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.
When was CVE-2017-9805 disclosed?
CVE-2017-9805 was first published on September 15, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-9805 actively exploited?
Yes. CISA added CVE-2017-9805 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Apache Struts. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2017-9805?
CVE-2017-9805 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2017-9805?
CVE-2017-9805 affects Apache Struts. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2017-9805?
A fix for CVE-2017-9805 is available: update to the fixed version the vendor names in its advisory.

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