CVE-2017-6034

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 9.8Exploit: NoneExposed: 0

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

An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol. Sensitive information is transmitted in cleartext in the Modicon Modbus protocol, which may allow an attacker to replay the following commands: run, stop, upload, and download.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
91.5%
KEV
Not listed

Published

June 30, 2017

Last Modified

June 4, 2026

Advisory Details (3)

Auto-updated Jun 20, 2026
No patch confirmed yet.
generic
http://www.securityfocus.com/bid/97562
generic

Security Notification - Modicon Controllers and SCADAPack (V3.0) | Schneider Electric

https://www.se.com/us/en/download/document/SEVD-2017-065-01/
generic

CSAF/csaf_files/OT/white/2017/icsa-17-101-01.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2017/icsa-17-101-01.json

Vendor Advisories for CVE-2017-6034(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-6034?
CVE-2017-6034 is a critical vulnerability published on June 30, 2017. An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol. Sensitive information is transmitted in cleartext in the Modicon Modbus protocol, which may allow an attacker to replay the following commands: run, stop, upload, and download.
When was CVE-2017-6034 disclosed?
CVE-2017-6034 was first published in the National Vulnerability Database on June 30, 2017, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6034 actively exploited?
CVE-2017-6034 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-6034?
CVE-2017-6034 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2017-6034?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6034, 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.

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