Buffer overflow in Apple macOS
CVE-2025-43380
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. Parsing a file may lead to an unexpected app termination.
Vulnerability class: Buffer Overflow
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 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% 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-2025-43380?
- CVE-2025-43380 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2025-11-04.
- How severe is CVE-2025-43380?
- Medium severity. CVSS v3 base score is 5.5 out of 10.