CVE-2026-43684

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to cause unexpected system termination or corrupt kernel memory.

CVSS v3
7.8
EG Score
7.8HIGHhigh confidence
EG Risk
35
EG Risk 35/100

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 (value × EchelonGraph’s weight)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Fix named in the CVE record.
Web page

About the security content of macOS Sequoia 15.8 - Apple Support

https://support.apple.com/en-us/149043
Web page

About the security content of iOS 26.7 and iPadOS 26.7 - Apple Support

https://support.apple.com/en-us/149041
Web page

About the security content of macOS Golden Gate 27 - Apple Support

https://support.apple.com/en-us/149035

Vendor Advisories for CVE-2026-43684(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 23× in last 7d / 116× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 116 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 16 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-12 16:06 UTCEG score recompute
  4. 2026-10-11 19:48 UTCEG score recompute
  5. 2026-10-11 16:49 UTCEG score recompute
  6. 2026-10-11 16:48 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-11 14:28 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-11 05:59 UTCEG score recompute
  10. 2026-10-11 05:59 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-10 13:47 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-10 02:57 UTCEG score recompute
  14. 2026-10-10 02:57 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-09 16:07 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-08 22:51 UTCEG score recompute
  18. 2026-10-08 22:50 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-08 05:57 UTCEG score recompute
  21. 2026-10-08 05:57 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-07 19:07 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  24. 2026-10-07 07:54 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-06 21:05 UTCEG score recompute
Show 75 more
  1. 2026-10-06 21:05 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  2. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-06 10:16 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  4. 2026-10-05 22:48 UTCEG score recompute
  5. 2026-10-05 22:48 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  7. 2026-10-05 12:00 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-10-05 01:10 UTCEG score recompute
  9. 2026-10-05 01:10 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  10. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-10-04 13:57 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-04 03:08 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-03 16:19 UTCEG score recompute
  14. 2026-10-03 16:18 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-03 05:30 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-02 18:40 UTCEG score recompute
  18. 2026-10-02 18:40 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-02 07:50 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-01 21:02 UTCEG score recompute
  21. 2026-10-01 21:02 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-01 10:11 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  24. 2026-09-30 23:22 UTCEG score recompute
  25. 2026-09-30 23:22 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  26. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  27. 2026-09-30 12:16 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  28. 2026-09-30 01:26 UTCEG score recompute
  29. 2026-09-30 01:26 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  30. 2026-09-29 07:38 UTCEG score recompute
  31. 2026-09-29 07:38 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  32. 2026-09-28 20:49 UTCEG score recompute
  33. 2026-09-28 20:49 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  34. 2026-09-28 10:00 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-09-27 23:11 UTCEG score recompute
  36. 2026-09-27 23:11 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  37. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  38. 2026-09-27 12:22 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  39. 2026-09-27 01:33 UTCEG score recompute
  40. 2026-09-27 01:33 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-09-26 14:19 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-09-26 02:45 UTCEG score recompute
  44. 2026-09-26 02:45 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  45. 2026-09-25 15:53 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-09-25 05:04 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-09-24 18:15 UTCEG score recompute
  48. 2026-09-24 18:15 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-09-24 07:26 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-09-23 20:37 UTCEG score recompute
  51. 2026-09-23 20:37 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  52. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-09-23 09:48 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  54. 2026-09-22 22:59 UTCEG score recompute
  55. 2026-09-22 22:59 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  56. 2026-09-22 12:10 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-22 01:21 UTCEG score recompute
  58. 2026-09-22 01:21 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-09-21 14:31 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  60. 2026-09-21 03:42 UTCEG score recompute
  61. 2026-09-21 03:42 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  63. 2026-09-20 16:52 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-09-20 06:03 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-09-19 19:14 UTCEG score recompute
  66. 2026-09-19 19:13 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-09-19 08:17 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  68. 2026-09-18 21:28 UTCEG score recompute
  69. 2026-09-18 21:28 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-09-18 10:40 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-09-17 23:51 UTCEG score recompute
  73. 2026-09-17 23:51 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  75. 2026-09-17 12:57 UTCGHSA enrichmentGHSA-2fpc-gmc5-4899 · GitHub severity HIGH · GitHub CVSS 7.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43684?
CVE-2026-43684 is a high-severity vulnerability; its CVE record was published on September 14, 2026. A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to cause unexpected system termination or corrupt kernel memory.
When was the CVE record for CVE-2026-43684 published?
The CVE record for CVE-2026-43684 was published on September 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 16, 2026; the record at its source may have been updated since.
Is CVE-2026-43684 actively exploited?
CVE-2026-43684 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-2026-43684?
CVE-2026-43684 has a CVSS v3.1 base score of 7.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43684?
The CVE record for CVE-2026-43684 names the fix: "This issue is fixed in iOS 26.7 and iPadOS 26.7, macOS Golden Gate 27, macOS Sequoia 15.8." The vendor advisories EchelonGraph has for CVE-2026-43684 are linked in the Vendor Advisories panel on this page.

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