CVE-2023-43000

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-03-05), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 4%CVSS: 8.8Exploit: cisa kevExposed: 0

A fix is available — apply it.

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
4%
EPSS %ILE
89%
KEV
⚠ Exploited

Published

November 5, 2025

Last Modified

March 12, 2026

Advisory Details (6)

Auto-updated Jun 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000
generic🔴 Active Exploitation

Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit | Google Cloud Blog

https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit
generic

About the security content of iOS 15.8.7 and iPadOS 15.8.7 - Apple Support

https://support.apple.com/en-us/126632
generic🔴 Active Exploitation

About the security content of iOS 16.6 and iPadOS 16.6 - Apple Support

https://support.apple.com/en-us/120338
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.5 - Apple Support

https://support.apple.com/en-us/120331
generic

About the security content of Safari 16.6 - Apple Support

https://support.apple.com/en-us/120324

Vendor Advisories for CVE-2023-43000(9)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatwebkitgtk4-0:2.48.3-2.el7_92025-07-07redhat
redhatwebkit2gtk3-0:2.46.3-1.el8_82024-11-14redhat
redhatwebkit2gtk3-0:2.46.3-1.el8_22024-11-14redhat
redhatwebkit2gtk3-0:2.46.3-1.el8_62024-11-14redhat
redhatwebkit2gtk3-0:2.46.3-1.el8_42024-11-14redhat
redhatwebkit2gtk3-0:2.46.1-1.el9_02024-10-28redhat
redhatwebkit2gtk3-0:2.46.1-1.el9_22024-10-28redhat
redhatwebkit2gtk3-0:2.42.5-1.el82024-05-22redhat
redhatwebkit2gtk3-0:2.42.5-1.el92024-04-30redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 106× in last 7d / 394× 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 903 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2023-43000?
CVE-2023-43000 is a critical vulnerability published on November 5, 2025. A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.
When was CVE-2023-43000 disclosed?
CVE-2023-43000 was first published in the National Vulnerability Database on November 5, 2025, with the most recent update on March 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-43000 actively exploited?
Yes. CISA added CVE-2023-43000 to the Known Exploited Vulnerabilities catalog on March 5, 2026, affecting Apple Multiple Products. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-43000?
CVE-2023-43000 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-43000?
CVE-2023-43000 affects Apple Multiple Products. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-43000?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43000, 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-2023-43000

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