CVE-2017-6594

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 7.5Exploit: None knownExposed: 0

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

The transit path validation code in Heimdal before 7.3 might allow attackers to bypass the capath policy protection mechanism by leveraging failure to add the previous hop realm to the transit path of issued tickets.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity75% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
76%
KEV
Not listed

Published

August 28, 2017

Last Modified

June 17, 2026

References (8)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 39× 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 105 total refreshes for this CVE.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:30 UTCEG score recompute
  4. 2026-07-22 22:09 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
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  7. 2026-07-21 15:21 UTCEPSS rescore
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  20. 2026-07-13 22:26 UTCEPSS rescore
  21. 2026-07-12 05:43 UTCEPSS rescore
  22. 2026-07-11 18:52 UTCOSV refresh
  23. 2026-07-11 08:24 UTCEPSS rescore
  24. 2026-07-09 19:06 UTCEPSS rescore
  25. 2026-07-08 15:10 UTCEPSS rescore
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  1. 2026-07-07 13:42 UTCEPSS rescore
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  20. 2026-06-23 21:30 UTCEPSS rescore
  21. 2026-06-23 01:30 UTCOSV refresh
  22. 2026-06-22 14:23 UTCEPSS rescore
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  24. 2026-06-21 14:54 UTCEPSS rescore
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  40. 2026-06-08 14:14 UTCEPSS rescore
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  42. 2026-06-07 15:22 UTCEPSS rescore
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  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-06 13:45 UTCEPSS rescore
  46. 2026-06-05 22:44 UTCEPSS rescore
  47. 2026-06-05 20:27 UTCOSV refresh
  48. 2026-06-05 06:08 UTCEPSS rescore
  49. 2026-06-05 06:08 UTCEPSS rescore
  50. 2026-06-04 13:10 UTCEPSS rescore
  51. 2026-06-02 20:11 UTCEPSS rescore
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  53. 2026-06-01 13:49 UTCEPSS rescore
  54. 2026-05-31 22:28 UTCEPSS rescore
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  56. 2026-05-31 00:14 UTCEPSS rescore
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  58. 2026-05-29 13:41 UTCEPSS rescore
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  61. 2026-05-27 13:38 UTCEPSS rescore
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  65. 2026-05-26 07:17 UTCEPSS rescore
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  67. 2026-05-22 21:15 UTCEPSS rescore
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  71. 2026-05-22 21:15 UTCEPSS rescore
  72. 2026-05-22 10:23 UTCEG score recompute
  73. 2026-05-22 10:23 UTCGHSA enrichment
  74. 2026-05-21 22:40 UTCEPSS rescore
  75. 2026-05-20 22:37 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-6594?
CVE-2017-6594 is a high vulnerability published on August 28, 2017. The transit path validation code in Heimdal before 7.3 might allow attackers to bypass the capath policy protection mechanism by leveraging failure to add the previous hop realm to the transit path of issued tickets.
When was CVE-2017-6594 disclosed?
CVE-2017-6594 was first published in the National Vulnerability Database on August 28, 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-2017-6594 actively exploited?
CVE-2017-6594 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 24.4% of all scored CVEs.
What is the CVSS score of CVE-2017-6594?
CVE-2017-6594 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-6594?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6594, 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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