This issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7. A malicious app may be able to read kernel memory.
Conclusion & alert: CVE-2025-43189 is rated Moderate Risk (63.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.54%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-25 | 0.05% | 0.54% | +0.49% |
| 2 | 2025-08-04 | 0.02% | 0.05% | +0.03% |
| 3 | 2025-07-30 | — | 0.02% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| URL | Tags |
|---|---|
| https://support.apple.com/en-us/124149 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/124150 | Release Notes Vendor Advisory |
| http://seclists.org/fulldisclosure/2025/Jul/32 | |
| http://seclists.org/fulldisclosure/2025/Jul/33 |