CVEs / CVE-2023-32439
CVE-2023-32439: Apple Multiple Products WebKit Type Confusion Vulnerability
- Known exploited in the CISA KEV catalog since 23 Jun 2023
- high 8.8 CVSS 3.1 (NVD)
- EPSS 23.9% chance of exploitation in the next 30 days, higher than 97% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple iOS and iPadOS | from unspecified, before 15.7 | 15.7 |
| Apple Safari | from unspecified, before 16.5 | 16.5 |
| Apple iOS and iPadOS | from unspecified, before 16.5 | 16.5 |
| Apple macOS | from unspecified, before 13.4 | 13.4 |
Exploitation
| In CISA KEV since | 23 Jun 2023 |
|---|---|
| Due date for US federal agencies | 14 Jul 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-843 |
References
- CVE-2023-32439 on NVD
- CVE-2023-32439 in the CISA KEV catalog
- https://support.apple.com/en-us/HT213813 (cited by CISA)
- https://support.apple.com/en-us/HT213811 (cited by CISA)
- https://support.apple.com/en-us/HT213814 (cited by CISA)
- https://support.apple.com/en-us/HT213816 (cited by CISA)
- CVE-2023-32439 on OSV
- 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
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.