CVE-2017-20284

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

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

Caucho Resin contains a path traversal vulnerability in the documentation webapp (resin-doc) that allows remote unauthenticated attackers to read arbitrary files by supplying a relative path through the inputFile request parameter of the jndi-appconfig tutorial servlet. Attackers can craft requests with directory traversal sequences to the servlet endpoint to read files outside the intended tutorial directory on the underlying system. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-12-10.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
65
EG Risk 65/100CISA 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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
1.0%
EPSS %ILE
60th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 18, 2026

Last Modified

September 22, 2026

Advisory Details (3)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

Caucho Resin resin-doc Unauthenticated Path Traversal via jndi-appconfig Servlet | Advisories | VulnCheck

https://www.vulncheck.com/advisories/caucho-resin-resin-doc-unauthenticated-path-traversal-via-jndi-appconfig-servlet
generic

针对Resin服务的攻击向量整理 // Neurohazard

https://blkstone.github.io/2017/10/30/resin-attack-vectors/
generic
https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/main/http/vulnerabilities/chanjet-tplus/chanjet-crm-sqli.yaml

Vendor Advisories for CVE-2017-20284(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 64× 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.

  1. 2026-10-05 04:36 UTCEG score recompute
  2. 2026-10-05 04:36 UTCGHSA enrichment
  3. 2026-10-04 23:18 UTCEPSS rescore
  4. 2026-10-04 17:20 UTCGHSA enrichment
  5. 2026-10-04 06:03 UTCGHSA enrichment
  6. 2026-10-03 18:48 UTCEG score recompute
  7. 2026-10-03 18:48 UTCGHSA enrichment
  8. 2026-10-03 14:21 UTCEPSS rescore
  9. 2026-10-03 07:12 UTCGHSA enrichment
  10. 2026-10-02 19:57 UTCEG score recompute
  11. 2026-10-02 19:57 UTCGHSA enrichment
  12. 2026-10-02 08:41 UTCGHSA enrichment
  13. 2026-10-01 21:26 UTCEG score recompute
  14. 2026-10-01 21:26 UTCGHSA enrichment
  15. 2026-10-01 10:11 UTCGHSA enrichment
  16. 2026-09-30 22:56 UTCEG score recompute
  17. 2026-09-30 22:56 UTCGHSA enrichment
  18. 2026-09-30 14:59 UTCEPSS rescore
  19. 2026-09-30 11:41 UTCGHSA enrichment
  20. 2026-09-30 00:25 UTCEG score recompute
  21. 2026-09-30 00:25 UTCGHSA enrichment
  22. 2026-09-29 10:44 UTCGHSA enrichment
  23. 2026-09-28 23:28 UTCEG score recompute
  24. 2026-09-28 23:28 UTCGHSA enrichment
  25. 2026-09-28 13:45 UTCEPSS rescore
Show 39 more
  1. 2026-09-28 12:13 UTCGHSA enrichment
  2. 2026-09-28 00:58 UTCGHSA enrichment
  3. 2026-09-27 13:43 UTCEG score recompute
  4. 2026-09-27 13:43 UTCGHSA enrichment
  5. 2026-09-27 13:40 UTCEPSS rescore
  6. 2026-09-27 13:40 UTCEPSS rescore
  7. 2026-09-27 02:26 UTCEG score recompute
  8. 2026-09-27 02:26 UTCGHSA enrichment
  9. 2026-09-26 15:53 UTCEPSS rescore
  10. 2026-09-26 15:10 UTCGHSA enrichment
  11. 2026-09-26 03:54 UTCEG score recompute
  12. 2026-09-26 03:54 UTCGHSA enrichment
  13. 2026-09-25 16:34 UTCGHSA enrichment
  14. 2026-09-25 05:19 UTCGHSA enrichment
  15. 2026-09-24 18:01 UTCEG score recompute
  16. 2026-09-24 18:01 UTCGHSA enrichment
  17. 2026-09-24 13:59 UTCEPSS rescore
  18. 2026-09-24 06:24 UTCGHSA enrichment
  19. 2026-09-23 19:09 UTCEG score recompute
  20. 2026-09-23 19:09 UTCGHSA enrichment
  21. 2026-09-23 07:49 UTCGHSA enrichment
  22. 2026-09-22 20:34 UTCEG score recompute
  23. 2026-09-22 20:34 UTCGHSA enrichment
  24. 2026-09-22 14:40 UTCGHSA enrichment
  25. 2026-09-22 03:25 UTCEG score recompute
  26. 2026-09-22 03:25 UTCGHSA enrichment
  27. 2026-09-21 16:10 UTCGHSA enrichment
  28. 2026-09-21 04:53 UTCEG score recompute
  29. 2026-09-21 04:53 UTCGHSA enrichment
  30. 2026-09-20 17:34 UTCGHSA enrichment
  31. 2026-09-20 06:18 UTCGHSA enrichment
  32. 2026-09-19 19:03 UTCEG score recompute
  33. 2026-09-19 19:03 UTCGHSA enrichment
  34. 2026-09-19 07:46 UTCEG score recompute
  35. 2026-09-19 07:46 UTCGHSA enrichment
  36. 2026-09-18 20:31 UTCEG score recompute
  37. 2026-09-18 19:54 UTCEG score recompute
  38. 2026-09-18 19:19 UTCEG score recompute
  39. 2026-09-18 19:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-20284?
CVE-2017-20284 is a high vulnerability published on September 18, 2026. Caucho Resin contains a path traversal vulnerability in the documentation webapp (resin-doc) that allows remote unauthenticated attackers to read arbitrary files by supplying a relative path through the inputFile request parameter of the jndi-appconfig tutorial servlet. Attackers can craft requests…
When was CVE-2017-20284 disclosed?
CVE-2017-20284 was first published on September 18, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-20284 actively exploited?
CVE-2017-20284 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (60th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-20284?
CVE-2017-20284 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2017-20284?
No fix for CVE-2017-20284 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2017-20284 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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