Buffer overflow in Apple macOS
CVE-2025-43373
The issue was addressed with improved memory handling. 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 or corrupt kernel memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · 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-2025-43373?
- CVE-2025-43373 is a high-severity vulnerability in Apple macOS, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2025-11-04.
- How severe is CVE-2025-43373?
- High severity. CVSS v3 base score is 7.5 out of 10.