CVE-2023-23529

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 2023-02-14), 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: 10%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 15.7.4 and iPadOS 15.7.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, Safari 16.3. 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
10%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

February 27, 2023

Last Modified

October 23, 2025

Advisory Details (5)

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-2023-23529
generic🔴 Active Exploitation

About the security content of iOS 15.7.4 and iPadOS 15.7.4 - Apple Support

https://support.apple.com/en-us/HT213673
generic🔴 Active Exploitation

About the security content of Safari 16.3 - Apple Support

https://support.apple.com/en-us/HT213638
generic🔴 Active Exploitation

About the security content of iOS 16.3.1 and iPadOS 16.3.1 - Apple Support

https://support.apple.com/en-us/HT213635
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.2.1 - Apple Support

https://support.apple.com/en-us/HT213633

Vendor Advisories for CVE-2023-23529(1)

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
ubuntulibwebkit2gtk-4.0-dev (2.38.5-0ubuntu0.22.04.1) @ jammy2026-09-08ubuntu
redhatwebkitgtk4-0:2.48.3-2.el7_92025-07-07redhat
redhatwebkit2gtk3-0:2.36.7-1.el8_7.22023-02-22redhat
redhatwebkit2gtk3-0:2.36.7-1.el9_1.22023-02-22redhat

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

(9 across 5 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.32.3-1 ... 2.38.5-1~deb10u1 (70 versions)2.38.5-1~deb11u1—
wpewebkit2.32.3-2 ... 2.38.4-1~deb11u1 (34 versions)2.38.5-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk—2.38.5-1—
wpewebkit—2.38.5-1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk—2.38.5-1—
wpewebkit—2.38.5-1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk—2.38.5-1—
wpewebkit—2.38.5-1—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.24.2-1 ... 2.38.4-2~deb11u1 (155 versions)2.38.5-1~deb10u1—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

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 102× in last 7d / 429× 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 1,414 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2023-23529?
CVE-2023-23529 is a critical vulnerability published on February 27, 2023. A type confusion issue was addressed with improved checks. This issue is fixed in iOS 15.7.4 and iPadOS 15.7.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, Safari 16.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this…
When was CVE-2023-23529 disclosed?
CVE-2023-23529 was first published in the National Vulnerability Database on February 27, 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-2023-23529 actively exploited?
Yes. CISA added CVE-2023-23529 to the Known Exploited Vulnerabilities catalog on February 14, 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-2023-23529?
CVE-2023-23529 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-2023-23529?
CVE-2023-23529 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-2023-23529?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-23529, 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-2023-23529

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