CVE-2023-43000

HIGHNVD 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
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 4%CVSS: 8.8Exploit: NoneExposed: 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
89.3%
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_42024-11-14redhat
redhatwebkit2gtk3-0:2.46.3-1.el8_62024-11-14redhat
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 99× in last 7d / 408× 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 735 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2023-43000?
CVE-2023-43000 is a high 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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