CVE-2026-64746

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH 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 — 5 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

An authorization issue was addressed with improved validation. This issue is fixed in 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
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (4)

Auto-updated Jul 28, 2026
No patch confirmed yet.
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 56× 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.

  1. 2026-08-03 19:52 UTCGHSA enrichment
  2. 2026-08-03 16:04 UTCGHSA enrichment
  3. 2026-08-03 12:15 UTCEG score recompute
  4. 2026-08-03 12:15 UTCGHSA enrichment
  5. 2026-08-03 10:36 UTCEPSS rescore
  6. 2026-08-03 08:26 UTCGHSA enrichment
  7. 2026-08-03 04:34 UTCGHSA enrichment
  8. 2026-08-03 00:46 UTCGHSA enrichment
  9. 2026-08-02 20:58 UTCGHSA enrichment
  10. 2026-08-02 17:11 UTCGHSA enrichment
  11. 2026-08-02 13:23 UTCGHSA enrichment
  12. 2026-08-02 09:35 UTCGHSA enrichment
  13. 2026-08-02 05:47 UTCGHSA enrichment
  14. 2026-08-02 01:59 UTCGHSA enrichment
  15. 2026-08-01 22:11 UTCGHSA enrichment
  16. 2026-08-01 18:23 UTCGHSA enrichment
  17. 2026-08-01 14:35 UTCGHSA enrichment
  18. 2026-08-01 10:47 UTCGHSA enrichment
  19. 2026-08-01 06:59 UTCEG score recompute
  20. 2026-08-01 06:59 UTCGHSA enrichment
  21. 2026-08-01 04:16 UTCEPSS rescore
  22. 2026-08-01 03:08 UTCGHSA enrichment
  23. 2026-07-31 23:19 UTCGHSA enrichment
  24. 2026-07-31 19:31 UTCGHSA enrichment
  25. 2026-07-31 15:35 UTCGHSA enrichment
Show 33 more
  1. 2026-07-31 11:45 UTCGHSA enrichment
  2. 2026-07-31 07:57 UTCGHSA enrichment
  3. 2026-07-31 04:09 UTCGHSA enrichment
  4. 2026-07-31 00:16 UTCGHSA enrichment
  5. 2026-07-30 20:27 UTCGHSA enrichment
  6. 2026-07-30 16:36 UTCEG score recompute
  7. 2026-07-30 16:36 UTCGHSA enrichment
  8. 2026-07-30 16:28 UTCEPSS rescore
  9. 2026-07-30 12:38 UTCEG score recompute
  10. 2026-07-30 12:38 UTCGHSA enrichment
  11. 2026-07-30 08:49 UTCGHSA enrichment
  12. 2026-07-30 05:01 UTCEG score recompute
  13. 2026-07-30 05:01 UTCGHSA enrichment
  14. 2026-07-30 01:30 UTCEPSS rescore
  15. 2026-07-30 01:30 UTCEPSS rescore
  16. 2026-07-30 01:14 UTCGHSA enrichment
  17. 2026-07-29 21:25 UTCGHSA enrichment
  18. 2026-07-29 17:37 UTCGHSA enrichment
  19. 2026-07-29 13:49 UTCGHSA enrichment
  20. 2026-07-29 10:00 UTCGHSA enrichment
  21. 2026-07-29 06:11 UTCGHSA enrichment
  22. 2026-07-29 02:23 UTCGHSA enrichment
  23. 2026-07-28 22:35 UTCGHSA enrichment
  24. 2026-07-28 18:48 UTCEG score recompute
  25. 2026-07-28 18:48 UTCGHSA enrichment
  26. 2026-07-28 16:41 UTCGHSA enrichment
  27. 2026-07-28 16:15 UTCEG score recompute▲ 9.80
  28. 2026-07-28 16:14 UTCGHSA enrichment
  29. 2026-07-28 16:13 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  30. 2026-07-28 15:37 UTCEPSS rescore
  31. 2026-07-27 21:19 UTCNVD update
  32. 2026-07-27 20:26 UTCEG score recompute
  33. 2026-07-27 20:24 UTCMITRE cvelistV5first tracked

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 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 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-2026-64746 actively exploited?
CVE-2026-64746 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 67.4% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64746, 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-2026-64746

Explore →

Is Your Infrastructure Affected by CVE-2026-64746?

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

Start Free Scan →Browse All CVEs