CVE-2017-20235

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 63% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
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.

ProSoft Technology ICX35-HWC version 1.3 and prior cellular gateways contain an authentication bypass vulnerability in the web user interface that allows unauthenticated attackers to gain access to administrative functions without valid credentials. Attackers can bypass the authentication mechanism in affected firmware versions to obtain full administrative access to device configuration and settings.

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

ProSoft Technology ICX35-HWC Authentication Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/prosoft-technology-icx35-hwc-authentication-bypass
generic
https://assets.belden.com/m/1281cac2c9e90abf/original/Security-Bulletin-Authentication-Security-ProSoft-ICX35-BSECV-2017-09.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 207 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 12:21 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 01:26 UTCEPSS rescore
  3. 2026-08-14 22:37 UTCGHSA enrichment
  4. 2026-08-14 18:50 UTCGHSA enrichment
  5. 2026-08-14 13:15 UTCGHSA enrichment
  6. 2026-08-14 09:27 UTCGHSA enrichment
  7. 2026-08-14 05:40 UTCEG score recompute
  8. 2026-08-14 05:40 UTCGHSA enrichment
  9. 2026-08-13 09:54 UTCGHSA enrichment
  10. 2026-08-13 03:30 UTCGHSA enrichment
  11. 2026-08-12 23:43 UTCGHSA enrichment
  12. 2026-08-12 19:56 UTCEG score recompute
  13. 2026-08-12 19:56 UTCGHSA enrichment
  14. 2026-08-12 13:46 UTCEPSS rescore
  15. 2026-08-12 00:39 UTCGHSA enrichment
  16. 2026-08-11 20:15 UTCEG score recompute
  17. 2026-08-11 20:15 UTCGHSA enrichment
  18. 2026-08-11 07:12 UTCGHSA enrichment
  19. 2026-08-11 03:24 UTCEG score recompute
  20. 2026-08-11 03:24 UTCGHSA enrichment
  21. 2026-08-10 11:57 UTCGHSA enrichment
  22. 2026-08-10 07:54 UTCGHSA enrichment
  23. 2026-08-10 04:07 UTCGHSA enrichment
  24. 2026-08-10 00:20 UTCGHSA enrichment
  25. 2026-08-09 20:32 UTCGHSA enrichment
  26. 2026-08-09 16:45 UTCEG score recompute
  27. 2026-08-09 16:45 UTCGHSA enrichment
  28. 2026-08-09 13:42 UTCEPSS rescore
  29. 2026-08-09 12:58 UTCGHSA enrichment
  30. 2026-08-09 08:59 UTCGHSA enrichment
  31. 2026-08-09 05:12 UTCEG score recompute
  32. 2026-08-09 05:12 UTCGHSA enrichment
  33. 2026-08-08 10:13 UTCGHSA enrichment
  34. 2026-08-08 06:26 UTCGHSA enrichment
  35. 2026-08-08 02:39 UTCGHSA enrichment
  36. 2026-08-07 22:52 UTCGHSA enrichment
  37. 2026-08-07 19:05 UTCEG score recompute
  38. 2026-08-07 19:05 UTCGHSA enrichment
  39. 2026-08-07 16:22 UTCEPSS rescore
  40. 2026-08-07 15:18 UTCGHSA enrichment
  41. 2026-08-06 17:40 UTCEG score recompute
  42. 2026-08-06 17:40 UTCGHSA enrichment
  43. 2026-08-06 13:42 UTCEPSS rescore
  44. 2026-08-06 13:14 UTCGHSA enrichment
  45. 2026-08-06 07:51 UTCGHSA enrichment
  46. 2026-08-06 04:03 UTCGHSA enrichment
  47. 2026-08-06 00:16 UTCEG score recompute
  48. 2026-08-06 00:16 UTCGHSA enrichment
  49. 2026-08-05 19:12 UTCEPSS rescore
  50. 2026-08-04 15:05 UTCEPSS rescore
  51. 2026-08-04 02:24 UTCGHSA enrichment
  52. 2026-08-03 22:37 UTCEG score recompute
  53. 2026-08-03 22:37 UTCGHSA enrichment
  54. 2026-08-03 02:01 UTCGHSA enrichment
  55. 2026-08-02 22:14 UTCGHSA enrichment
  56. 2026-08-02 18:27 UTCGHSA enrichment
  57. 2026-08-02 14:33 UTCEG score recompute
  58. 2026-08-02 14:33 UTCGHSA enrichment
  59. 2026-08-02 02:23 UTCEPSS rescore
  60. 2026-08-01 04:11 UTCEPSS rescore
  61. 2026-07-30 16:24 UTCEPSS rescore
  62. 2026-07-30 01:26 UTCEPSS rescore
  63. 2026-07-28 15:32 UTCEPSS rescore
  64. 2026-07-26 14:51 UTCEPSS rescore
  65. 2026-07-23 14:15 UTCEPSS rescore
  66. 2026-07-23 01:28 UTCEG score recompute
  67. 2026-07-22 22:08 UTCEG score recompute▲ 0.70
  68. 2026-07-22 14:04 UTCEPSS rescore
  69. 2026-07-22 14:04 UTCEPSS rescore
  70. 2026-07-21 15:21 UTCEPSS rescore
  71. 2026-07-21 15:21 UTCEPSS rescore
  72. 2026-07-21 08:49 UTCNVD updateCVSS v3 → 9.8
  73. 2026-07-20 17:04 UTCEPSS rescore
  74. 2026-07-19 14:28 UTCEPSS rescore
  75. 2026-07-19 14:28 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-20235?
CVE-2017-20235 is a critical vulnerability published on April 3, 2026. ProSoft Technology ICX35-HWC version 1.3 and prior cellular gateways contain an authentication bypass vulnerability in the web user interface that allows unauthenticated attackers to gain access to administrative functions without valid credentials. Attackers can bypass the authentication mechanism…
When was CVE-2017-20235 disclosed?
CVE-2017-20235 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-2017-20235 actively exploited?
CVE-2017-20235 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 61.9% of all scored CVEs.
What is the CVSS score of CVE-2017-20235?
CVE-2017-20235 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-20235?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-20235, 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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