CVE-2023-43000
Apple Multiple products Use-After-Free Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA notes
https://support.apple.com/en-us/120324 ; https://support.apple.com/en-us/120331 ; https://support.apple.com/en-us/120338 ; https://nvd.nist.gov/vuln/detail/CVE-2023-43000
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation Context
as of October 15, 2026- CISA added CVE-2023-43000 to the KEV catalog 120 days after its CVE record was published. The median for entries added in 2026 so far is 14 days.
- It is one of 95 Apple entries in the CISA KEV catalog, and one of 9 added in 2026.
- Its current EPSS score (4.0%) is higher than that of 16% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Apple macOS | unspecified to <13.5 |
| Apple | Apple iOS and iPadOS | unspecified to <16.6 |
| Apple | Apple Safari | unspecified to <16.6 |
| Apple | Apple iOS and iPadOS | unspecified to <15.8.7 |
References
4 LinksRecord Details
More from Apple
Apple Multiple Products Integer Overflow Vulnerability
Apple Multiple Products Integer Overflow Vulnerability
Apple Multiple Products Memory Corruption Vulnerability
Apple Multiple Products WebKit Use-After-Free Vulnerability
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.