Vulnerability in Apple macOS

CVE-2025-43240

A logic issue was addressed with improved checks. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. A download's origin may be incorrectly associated.

EPSS: 0.009 (55.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-43240?
CVE-2025-43240 is a medium-severity vulnerability in Apple macOS, classified under CWE-703. CVSS score: 6.2/10. Published 2025-07-30.
How severe is CVE-2025-43240?
Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2025-43240 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.