CVE-2023-32439

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 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 24%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 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 PROB
24%
EPSS %ILE
98%
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) @ lunar2026-09-08ubuntu
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.

Affected Packages

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.32.3-1 ... 2.40.3-1 (90 versions)2.40.3-2~deb11u1—
wpewebkit2.32.3-2 ... 2.52.5-1 (90 versions)——
Debian:12(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.40.1-1 ... 2.40.3-2~deb11u2 (7 versions)2.40.3-2~deb12u1—
wpewebkit2.38.6-1 ... 2.52.5-1 (53 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk—2.40.3-1—
wpewebkit—2.40.3-1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk—2.40.3-1—
wpewebkit—2.40.3-1—

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 101× in last 7d / 436× 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 1,442 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2023-32439?
CVE-2023-32439 is a critical 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-32439

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