CVE-2017-20234

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-04. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

GarrettCom Magnum 6K and 10K managed switches contain an authentication bypass vulnerability that allows unauthenticated attackers to gain unauthorized access by exploiting a hardcoded string in the authentication mechanism. Attackers can bypass login controls to access administrative functions and sensitive switch configuration without valid credentials.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

April 3, 2026

Last Modified

July 21, 2026

Advisory Details (2)

Auto-updated Sep 12, 2026
No patch confirmed yet.
generic

GarrettCom Magnum 6K and 10K Authentication Bypass via Hardcoded String | Advisories | VulnCheck

https://www.vulncheck.com/advisories/garrettcom-magnum-6k-and-10k-authentication-bypass-via-hardcoded-string
generic
https://assets.belden.com/m/114be964b4651983/original/Security-Bulletin-MNS-6K-10K-GarrettCom-BSECV-2017-08.pdf

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 25× 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 211 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2017-20234?
CVE-2017-20234 is a critical vulnerability published on April 3, 2026. GarrettCom Magnum 6K and 10K managed switches contain an authentication bypass vulnerability that allows unauthenticated attackers to gain unauthorized access by exploiting a hardcoded string in the authentication mechanism. Attackers can bypass login controls to access administrative functions and…
When was CVE-2017-20234 disclosed?
CVE-2017-20234 was first published in the National Vulnerability Database on April 3, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-20234 actively exploited?
CVE-2017-20234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.6% of all scored CVEs.
What is the CVSS score of CVE-2017-20234?
CVE-2017-20234 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-20234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-20234, 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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