CVE-2026-64728

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (6)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

About the security content of Safari 26.6 - Apple Support

https://support.apple.com/en-us/128073
generic

About the security content of visionOS 26.6 - Apple Support

https://support.apple.com/en-us/128070
generic

About the security content of tvOS 26.6 - Apple Support

https://support.apple.com/en-us/128069
generic

About the security content of watchOS 26.6 - Apple Support

https://support.apple.com/en-us/128068
generic

About the security content of macOS Tahoe 26.6 - Apple Support

https://support.apple.com/en-us/128067
generic

About the security content of iOS 26.6 and iPadOS 26.6 - Apple Support

https://support.apple.com/en-us/128066

Vendor Advisories for CVE-2026-64728(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 92× 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. 2026-08-25 18:19 UTCEG score recompute
  2. 2026-08-25 18:19 UTCGHSA enrichment
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-24 20:41 UTCEG score recompute
  5. 2026-08-24 20:40 UTCGHSA enrichment
  6. 2026-08-23 23:02 UTCGHSA enrichment
  7. 2026-08-23 01:23 UTCEG score recompute
  8. 2026-08-23 01:23 UTCGHSA enrichment
  9. 2026-08-23 00:19 UTCEPSS rescore
  10. 2026-08-22 03:45 UTCEG score recompute
  11. 2026-08-22 03:45 UTCGHSA enrichment
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 06:06 UTCEG score recompute
  14. 2026-08-21 06:06 UTCGHSA enrichment
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-20 08:27 UTCEG score recompute
  17. 2026-08-20 08:27 UTCGHSA enrichment
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-19 10:48 UTCEG score recompute
  20. 2026-08-19 10:48 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-18 13:10 UTCGHSA enrichment
  23. 2026-08-17 15:30 UTCEG score recompute
  24. 2026-08-17 15:30 UTCGHSA enrichment
  25. 2026-08-17 13:47 UTCEPSS rescore
Show 67 more
  1. 2026-08-16 17:52 UTCEG score recompute
  2. 2026-08-16 17:52 UTCGHSA enrichment
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-15 20:14 UTCEG score recompute
  5. 2026-08-15 20:14 UTCGHSA enrichment
  6. 2026-08-15 01:30 UTCEPSS rescore
  7. 2026-08-14 22:35 UTCGHSA enrichment
  8. 2026-08-14 00:57 UTCEG score recompute
  9. 2026-08-14 00:57 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 03:19 UTCEG score recompute
  12. 2026-08-13 03:19 UTCGHSA enrichment
  13. 2026-08-12 13:51 UTCEPSS rescore
  14. 2026-08-12 05:41 UTCEG score recompute
  15. 2026-08-12 05:40 UTCGHSA enrichment
  16. 2026-08-11 07:56 UTCEG score recompute
  17. 2026-08-11 07:56 UTCGHSA enrichment
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 10:18 UTCEG score recompute
  20. 2026-08-10 10:18 UTCGHSA enrichment
  21. 2026-08-09 13:47 UTCEPSS rescore
  22. 2026-08-09 12:40 UTCEG score recompute
  23. 2026-08-09 12:40 UTCGHSA enrichment
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 15:02 UTCGHSA enrichment
  26. 2026-08-07 17:23 UTCEG score recompute
  27. 2026-08-07 17:23 UTCGHSA enrichment
  28. 2026-08-06 19:45 UTCEG score recompute
  29. 2026-08-06 19:45 UTCGHSA enrichment
  30. 2026-08-06 13:47 UTCEPSS rescore
  31. 2026-08-05 22:06 UTCEG score recompute
  32. 2026-08-05 22:06 UTCGHSA enrichment
  33. 2026-08-05 19:17 UTCEPSS rescore
  34. 2026-08-05 19:17 UTCEPSS rescore
  35. 2026-08-05 00:28 UTCEG score recompute
  36. 2026-08-05 00:28 UTCGHSA enrichment
  37. 2026-08-04 15:10 UTCEPSS rescore
  38. 2026-08-04 10:39 UTCEPSS rescore
  39. 2026-08-04 02:45 UTCEG score recompute
  40. 2026-08-04 02:45 UTCGHSA enrichment
  41. 2026-08-03 10:36 UTCEPSS rescore
  42. 2026-08-03 05:04 UTCGHSA enrichment
  43. 2026-08-02 07:23 UTCEG score recompute
  44. 2026-08-02 07:23 UTCGHSA enrichment
  45. 2026-08-02 02:27 UTCEPSS rescore
  46. 2026-08-01 09:44 UTCEG score recompute
  47. 2026-08-01 09:44 UTCGHSA enrichment
  48. 2026-08-01 04:16 UTCEPSS rescore
  49. 2026-07-31 12:06 UTCEG score recompute
  50. 2026-07-31 12:05 UTCGHSA enrichment
  51. 2026-07-30 16:28 UTCEPSS rescore
  52. 2026-07-30 14:24 UTCEG score recompute
  53. 2026-07-30 14:24 UTCGHSA enrichment
  54. 2026-07-30 01:30 UTCEPSS rescore
  55. 2026-07-30 01:30 UTCEPSS rescore
  56. 2026-07-29 16:45 UTCGHSA enrichment
  57. 2026-07-28 19:06 UTCEG score recompute
  58. 2026-07-28 19:06 UTCGHSA enrichment
  59. 2026-07-28 16:43 UTCEG score recompute
  60. 2026-07-28 16:43 UTCGHSA enrichment
  61. 2026-07-28 15:37 UTCEPSS rescore
  62. 2026-07-28 15:31 UTCEG score recompute▲ 6.50
  63. 2026-07-28 15:30 UTCGHSA enrichment
  64. 2026-07-28 15:29 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  65. 2026-07-27 21:19 UTCNVD update
  66. 2026-07-27 20:30 UTCEG score recompute
  67. 2026-07-27 20:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64728?
CVE-2026-64728 is a medium vulnerability published on July 27, 2026. A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Maliciously crafted web content may violate iframe sandboxing policy.
When was CVE-2026-64728 disclosed?
CVE-2026-64728 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64728 actively exploited?
CVE-2026-64728 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 70.0% of all scored CVEs.
What is the CVSS score of CVE-2026-64728?
CVE-2026-64728 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-64728?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64728, 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

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