CVE-2025-43255

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-29 · updated 2026-10-18
Weakness: CWE-125

Description

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.

Affected products

Apple macOS: from 13.0 before 13.7.7; from 14.0 before 14.7.7; from 15.0 before 15.6 — fixed in 13.7.7, 14.7.7, 15.6

How to fix

Upgrade to a fixed version: Apple macOS 13.7.7, 14.7.7, 15.6. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/124149
https://support.apple.com/en-us/124150
https://support.apple.com/en-us/124151
http://seclists.org/fulldisclosure/2025/Jul/32
http://seclists.org/fulldisclosure/2025/Jul/33
http://seclists.org/fulldisclosure/2025/Jul/34

Get alerted when CVE-2025-43255 or the next vulnerability affects your stack