Out-of-bounds Read in Apple macOS
CVE-2025-43284
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An app may be able to cause unexpected system 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 (4.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.7% 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)
Public proof-of-concept exploits
References
- support.apple.com/en-us/124149 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124150 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124151 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-43284?
- CVE-2025-43284 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2025-08-29.
- How severe is CVE-2025-43284?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2025-43284 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.