CVE-2026-64746

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

An authorization issue was addressed with improved validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. An app may be able to add contacts without user authorization.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 (5)

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

About the security content of iOS 18.7.10 and iPadOS 18.7.10 - Apple Support

https://support.apple.com/en-us/148287
generic

About the security content of visionOS 26.6 - Apple Support

https://support.apple.com/en-us/128070
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-2026-64746(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 22× in last 7d / 114× 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 378 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64746?
CVE-2026-64746 is a critical vulnerability published on July 27, 2026. An authorization issue was addressed with improved validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. An app may be able to add contacts without user authorization.
When was CVE-2026-64746 disclosed?
CVE-2026-64746 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-2026-64746 actively exploited?
CVE-2026-64746 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64746?
CVE-2026-64746 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-64746?
No fix for CVE-2026-64746 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-2026-64746 are linked in the Vendor Advisories panel on this page.

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