CVE-2026-43747

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Parsing a maliciously crafted file may lead to an unexpected app termination.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Jul 28, 2026
No patch confirmed 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 macOS Tahoe 26.6 - Apple Support

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

Vendor Advisories for CVE-2026-43747(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 / 110× 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 130 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43747?
CVE-2026-43747 is a high vulnerability published on July 27, 2026. An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Parsing a maliciously crafted file may lead to an unexpected app termination.
When was CVE-2026-43747 disclosed?
CVE-2026-43747 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-2026-43747 actively exploited?
CVE-2026-43747 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 92.3% of all scored CVEs.
What is the CVSS score of CVE-2026-43747?
CVE-2026-43747 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43747?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43747, 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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