Use After Free in Apple macOS
CVE-2025-43478
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. An app may be able to cause unexpected system termination.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Apple macOS — versions 0
Weakness classification (CWE)
References
- support.apple.com/en-us/125634
- support.apple.com/en-us/125635 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125636 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-43478?
- CVE-2025-43478 is a medium-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 5.5/10. Published 2025-11-04.
- How severe is CVE-2025-43478?
- Medium severity. CVSS v3 base score is 5.5 out of 10.