CVE-2023-32439

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 2023-06-23), 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: 24%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

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
97.6%
KEV
⚠ Exploited

Published

June 23, 2023

Last Modified

October 23, 2025

Advisory Details (7)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.4.1 - Apple Support

https://support.apple.com/en-us/HT213813
generic🔴 Active Exploitation

About the security content of iOS 15.7.7 and iPadOS 15.7.7 - Apple Support

https://support.apple.com/en-us/HT213811
generic

WebKitGTK+: Multiple Vulnerabilities (GLSA 202401-04) — Gentoo security

https://security.gentoo.org/glsa/202401-04
generic🔴 Active Exploitation

About the security content of Safari 16.5.1 - Apple Support

https://support.apple.com/kb/HT213816
generic🔴 Active Exploitation

About the security content of iOS 16.5.1 and iPadOS 16.5.1 - Apple Support

https://support.apple.com/kb/HT213814
generic🔴 Active Exploitation

About the security content of Safari 16.5.1 - Apple Support

https://support.apple.com/en-us/HT213816
generic🔴 Active Exploitation

About the security content of iOS 16.5.1 and iPadOS 16.5.1 - Apple Support

https://support.apple.com/en-us/HT213814

Vendor Advisories for CVE-2023-32439(3)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibwebkitgtk-6.0-dev (2.40.4-0ubuntu0.23.04.1) @ lunar2026-07-22ubuntu
redhatwebkitgtk4-0:2.48.3-2.el7_92025-07-07redhat
redhatwebkit2gtk3-0:2.38.5-1.el8_8.52023-07-18redhat
redhatwebkit2gtk3-0:2.38.5-1.el9_2.32023-07-18redhat

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.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 106× in last 7d / 437× 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 788 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2023-32439?
CVE-2023-32439 is a high vulnerability published on June 23, 2023. A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this…
When was CVE-2023-32439 disclosed?
CVE-2023-32439 was first published in the National Vulnerability Database on June 23, 2023, with the most recent update on October 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-32439 actively exploited?
Yes. CISA added CVE-2023-32439 to the Known Exploited Vulnerabilities catalog on June 23, 2023, 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-2023-32439?
CVE-2023-32439 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-2023-32439?
CVE-2023-32439 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-2023-32439?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-32439, 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-2023-32439

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