CVE-2017-8659

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 6.0%, top 7% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 6%CVSS: 4.3Exploit: NoneExposed: 0

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

Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to obtain information to further compromise the user's system due to the Chakra scripting engine not properly handling objects in memory, aka "Scripting Engine Information Disclosure Vulnerability".

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
26(Track)
EG Risk 26/100SSVC: 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
Severity43% × 45%
Exploitation6% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
92.6%
KEV
Not listed

Published

August 8, 2017

Last Modified

May 13, 2026

References (6)

Affected Packages

(1 across 1 ecosystem)
NuGet(1)
PackageVulnerable rangeFixed inDependents
Microsoft.ChakraCore1.2.0 ... 1.6.0 (19 versions)1.6.1—

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 45× 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 116 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2017-8659?
CVE-2017-8659 is a medium vulnerability published on August 8, 2017. Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to obtain information to further compromise the user's system due to the Chakra scripting engine not properly handling objects in memory, aka "Scripting Engine Information Disclosure Vulnerability".
When was CVE-2017-8659 disclosed?
CVE-2017-8659 was first published in the National Vulnerability Database on August 8, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-8659 actively exploited?
CVE-2017-8659 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-8659?
CVE-2017-8659 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2017-8659?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8659, 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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