CVE-2023-32439: Apple Multiple Products WebKit Type Confusion Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-fe0948b5ea1f, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- Apple Multiple Products WebKit Type Confusion Vulnerability
- Vendor
- Apple
- Product
- Multiple Products
- Added to the catalog
- 2023-06-23
- Due date for US federal agencies
- 2023-07-14
- Weaknesses
- CWE-843
- Catalog version
- 2026.10.30
Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
Required action (CISA)
Apply updates per vendor instructions.
Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.
Links in CISA's notes
- https://support.apple.com/en-us/HT213813,
- https://support.apple.com/en-us/HT213811,
- https://support.apple.com/en-us/HT213814,
- https://support.apple.com/en-us/HT213816
- https://nvd.nist.gov/vuln/detail/CVE-2023-32439
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2023-06-23T18:15:13.813
- Last modified
- 2026-06-17T05:58:50.663
- Weaknesses
- CWE-843
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.
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | [email protected] (Primary) |
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
References
- https://security.gentoo.org/glsa/202401-04 (Third Party Advisory)
- https://support.apple.com/en-us/HT213811 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213813 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213814 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213816 (Release Notes, Vendor Advisory)
- https://support.apple.com/kb/HT213814 (Vendor Advisory)
- https://support.apple.com/kb/HT213816 (Vendor Advisory)
- https://security.gentoo.org/glsa/202401-04 (Third Party Advisory)
- https://support.apple.com/en-us/HT213811 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213813 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213814 (Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/HT213816 (Release Notes, Vendor Advisory)
- https://support.apple.com/kb/HT213814 (Vendor Advisory)
- https://support.apple.com/kb/HT213816 (Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32439 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:42:08.214Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-32439
CVE record
- Assigner
- apple
- State
- PUBLISHED
- Published
- 2023-06-23T00:00:00.000Z
- Updated
- 2025-10-21T23:05:44.317Z
- Problem types
- 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.
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.
References
- https://support.apple.com/en-us/HT213811
- https://support.apple.com/en-us/HT213816
- https://support.apple.com/en-us/HT213814
- https://support.apple.com/en-us/HT213813
- https://support.apple.com/kb/HT213814
- https://support.apple.com/kb/HT213816
- https://security.gentoo.org/glsa/202401-04
Read on 2026-11-03T02:03:35.930Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/32xxx/CVE-2023-32439.json
Defensive techniques (MITRE D3FEND)
D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
D3FEND lists no defensive technique for this weakness.
D3FEND ontology version 1.6.0.
Read on 2026-11-03T00:03:11.743Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-843.json
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Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
MITRE D3FEND
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT
Cite this page
Dragons Eye Ransomware Tracker, "CVE-2023-32439: Apple Multiple Products WebKit Type Confusion Vulnerability",
entity page, dataset version ref-fe0948b5ea1f, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2023-32439 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T05:58:50.663.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:05:44.317Z.
Underlying source: MITRE D3FEND, ontology version 1.6.0.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.