CVE-2023-32439A type confusion issue was addressed with improved checks.
Updated under an hour ago ()
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It affects Apple iOS and iPadOS and 5 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jun 23, 2023; federal agencies had to remediate by Jul 14, 2023. Treat that date as your deadline.
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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
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-843
- Known exploited
- Added to CISA KEV Jun 23, 2023; federal remediation due Jul 14, 2023Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 23.97% (percentile 98)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple iOS and iPadOS apple:ios_and_ipados (from the name) | from unspecified before 15.7 | CNA record |
Apple Safari apple:safari (from the name) | from unspecified before 16.5 | CNA record |
Apple macOS apple:macos (from the name) | from unspecified before 13.4 | CNA record |
apple safari apple:safari | before 16.5.1 | NVD |
apple ipados apple:ipados | before 15.7.7; from 16.0 before 16.5.1 | NVD |
apple iphone_os apple:iphone_os | before 15.7.7; from 16.0 before 16.5.1 | NVD |
apple macos apple:macos | from 13.0 before 13.4.1 | NVD |
webkitgtk webkitgtk+ webkitgtk:webkitgtk+ | before 2.42.3 | NVD |
References
- https://support.apple.com/en-us/HT213811release-notes, vendor-advisory
- https://support.apple.com/en-us/HT213816release-notes, vendor-advisory
- https://support.apple.com/en-us/HT213814release-notes, vendor-advisory
- https://support.apple.com/en-us/HT213813release-notes, vendor-advisory
- https://support.apple.com/kb/HT213814vendor-advisory
- https://support.apple.com/kb/HT213816vendor-advisory
- https://security.gentoo.org/glsa/202401-04third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32439us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.