CVE-2026-64721

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

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

This issue was addressed through improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to access sensitive user data.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 27, 2026

Last Modified

August 17, 2026

Advisory Details (7)

Auto-updated Jul 28, 2026
No fix on record yet.
generic

About the security content of macOS Sonoma 14.8.8 - Apple Support

https://support.apple.com/en-us/128072
generic

About the security content of macOS Sequoia 15.7.8 - Apple Support

https://support.apple.com/en-us/128071
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-2026-64721(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 11× in last 7d / 58× 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 184 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-07 00:11 UTCEG score recompute
  5. 2026-10-07 00:11 UTCGHSA enrichment
  6. 2026-10-06 15:18 UTCEPSS rescore
  7. 2026-10-05 17:43 UTCEPSS rescore
  8. 2026-10-04 23:22 UTCEPSS rescore
  9. 2026-10-04 07:13 UTCEG score recompute
  10. 2026-10-04 07:13 UTCGHSA enrichment
  11. 2026-10-03 14:26 UTCEPSS rescore
  12. 2026-10-02 18:25 UTCEG score recompute
  13. 2026-10-02 18:25 UTCGHSA enrichment
  14. 2026-10-02 17:56 UTCEPSS rescore
  15. 2026-10-01 19:50 UTCEPSS rescore
  16. 2026-10-01 03:46 UTCEG score recompute
  17. 2026-10-01 03:46 UTCGHSA enrichment
  18. 2026-09-30 15:03 UTCEPSS rescore
  19. 2026-09-29 07:49 UTCEG score recompute
  20. 2026-09-29 07:49 UTCGHSA enrichment
  21. 2026-09-28 13:51 UTCEPSS rescore
  22. 2026-09-28 03:28 UTCEG score recompute
  23. 2026-09-28 03:28 UTCGHSA enrichment
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-25 06:31 UTCEG score recompute
Show 75 more
  1. 2026-09-25 06:31 UTCGHSA enrichment
  2. 2026-09-23 21:58 UTCEG score recompute
  3. 2026-09-23 21:58 UTCGHSA enrichment
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 21:45 UTCEG score recompute
  6. 2026-09-22 21:45 UTCGHSA enrichment
  7. 2026-09-20 20:16 UTCEPSS rescore
  8. 2026-09-20 03:45 UTCEG score recompute
  9. 2026-09-20 03:45 UTCGHSA enrichment
  10. 2026-09-19 05:25 UTCEG score recompute
  11. 2026-09-19 05:25 UTCGHSA enrichment
  12. 2026-09-18 19:28 UTCEPSS rescore
  13. 2026-09-18 03:15 UTCEG score recompute
  14. 2026-09-18 03:15 UTCGHSA enrichment
  15. 2026-09-17 05:08 UTCEG score recompute
  16. 2026-09-17 05:08 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 07:01 UTCEG score recompute
  19. 2026-09-16 07:01 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 08:54 UTCEG score recompute
  22. 2026-09-15 08:54 UTCGHSA enrichment
  23. 2026-09-14 01:08 UTCEG score recompute
  24. 2026-09-14 01:08 UTCGHSA enrichment
  25. 2026-09-13 03:02 UTCEG score recompute
  26. 2026-09-13 03:02 UTCGHSA enrichment
  27. 2026-09-12 04:55 UTCEG score recompute
  28. 2026-09-12 04:55 UTCGHSA enrichment
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 09:37 UTCEPSS rescore
  31. 2026-09-11 06:48 UTCEG score recompute
  32. 2026-09-11 06:48 UTCGHSA enrichment
  33. 2026-09-10 07:52 UTCGHSA enrichment
  34. 2026-09-09 08:09 UTCEG score recompute
  35. 2026-09-09 08:09 UTCGHSA enrichment
  36. 2026-09-08 22:01 UTCEPSS rescore
  37. 2026-09-07 20:58 UTCEG score recompute
  38. 2026-09-07 20:58 UTCGHSA enrichment
  39. 2026-09-07 16:01 UTCEPSS rescore
  40. 2026-09-06 17:23 UTCEG score recompute
  41. 2026-09-06 17:23 UTCGHSA enrichment
  42. 2026-09-06 13:47 UTCEPSS rescore
  43. 2026-09-05 19:11 UTCEG score recompute
  44. 2026-09-05 19:11 UTCGHSA enrichment
  45. 2026-09-05 15:31 UTCEPSS rescore
  46. 2026-09-04 12:11 UTCEG score recompute
  47. 2026-09-04 12:11 UTCGHSA enrichment
  48. 2026-09-04 05:07 UTCEPSS rescore
  49. 2026-09-02 14:12 UTCEPSS rescore
  50. 2026-09-01 22:59 UTCEG score recompute
  51. 2026-09-01 22:59 UTCGHSA enrichment
  52. 2026-09-01 13:54 UTCEPSS rescore
  53. 2026-09-01 04:40 UTCEPSS rescore
  54. 2026-09-01 00:53 UTCGHSA enrichment
  55. 2026-08-30 21:48 UTCEG score recompute
  56. 2026-08-30 21:48 UTCGHSA enrichment
  57. 2026-08-30 19:17 UTCEPSS rescore
  58. 2026-08-30 01:22 UTCEPSS rescore
  59. 2026-08-29 23:41 UTCEG score recompute
  60. 2026-08-29 23:41 UTCGHSA enrichment
  61. 2026-08-28 21:42 UTCEPSS rescore
  62. 2026-08-28 03:28 UTCEG score recompute
  63. 2026-08-28 03:28 UTCGHSA enrichment
  64. 2026-08-27 04:57 UTCEG score recompute
  65. 2026-08-27 04:57 UTCGHSA enrichment
  66. 2026-08-26 14:47 UTCEPSS rescore
  67. 2026-08-26 06:50 UTCEG score recompute
  68. 2026-08-26 06:50 UTCGHSA enrichment
  69. 2026-08-25 13:49 UTCEPSS rescore
  70. 2026-08-25 08:43 UTCEG score recompute
  71. 2026-08-25 08:43 UTCGHSA enrichment
  72. 2026-08-24 10:37 UTCEG score recompute
  73. 2026-08-24 10:36 UTCGHSA enrichment
  74. 2026-08-23 12:27 UTCEG score recompute
  75. 2026-08-23 12:27 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64721?
CVE-2026-64721 is a medium vulnerability published on July 27, 2026. This issue was addressed through improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to access sensitive user data.
When was CVE-2026-64721 disclosed?
CVE-2026-64721 was first published on July 27, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64721 actively exploited?
CVE-2026-64721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64721?
CVE-2026-64721 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-64721?
No fix for CVE-2026-64721 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-64721 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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