CVE-2017-2428

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. 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: 3%CVSS: 9.8Exploit: NoneExposed: 0

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

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the "HTTPProtocol" component. It allows remote HTTP/2 servers to have an unspecified impact via unknown vectors.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
83.2%
KEV
Not listed

Published

April 2, 2017

Last Modified

May 13, 2026

Advisory Details (7)

Auto-updated Jun 22, 2026
Patch available. Sources: github_release.
github_release Patch Available

nghttp2 v1.17.0

Patch available: nghttp2/nghttp2 v1.17.0

https://github.com/nghttp2/nghttp2/releases/tag/v1.17.0
generic
http://www.securitytracker.com/id/1038138
generic
http://www.securityfocus.com/bid/97146
generic

About the security content of iOS 10.3 - Apple Support

https://support.apple.com/HT207617
generic

About the security content of macOS Sierra 10.12.4, Security Update 2017-001 El Capitan, and Security Update 2017-001 Yosemite - Apple Support

https://support.apple.com/HT207615
generic

About the security content of watchOS 3.2 - Apple Support

https://support.apple.com/HT207602
generic

About the security content of tvOS 10.2 - Apple Support

https://support.apple.com/HT207601

Data Freshness Timeline

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

Frequently asked(5)

What is CVE-2017-2428?
CVE-2017-2428 is a critical vulnerability published on April 2, 2017. An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the "HTTPProtocol" component. It allows remote HTTP/2 servers to have an…
When was CVE-2017-2428 disclosed?
CVE-2017-2428 was first published in the National Vulnerability Database on April 2, 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-2017-2428 actively exploited?
CVE-2017-2428 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-2428?
CVE-2017-2428 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-2428?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-2428, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-2428

Explore →

Is Your Infrastructure Affected by CVE-2017-2428?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs