Out-of-bounds Read in Apple macOS
CVE-2025-43255
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
EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Apple Macos — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-43255?
- CVE-2025-43255 is a low-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2025-08-29.
- How severe is CVE-2025-43255?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2025-43255 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.