What is CVE-2025-43185?

CVE-2025-43185 is a medium-severity vulnerability in Apple macOS, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.5/10. Published 2025-07-30.

How severe is CVE-2025-43185?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple macOS

CVE-2025-43185

A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.6. An app may be able to access protected user data.

Published 2025-07-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (3.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.8% 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)

CWE-347 — Improper Verification of Cryptographic Signature

References

support.apple.com/en-us/124149 (Release Notes, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-43185?: CVE-2025-43185 is a medium-severity vulnerability in Apple macOS, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.5/10. Published 2025-07-30.
How severe is CVE-2025-43185?: Medium severity. CVSS v3 base score is 5.5 out of 10.