What’s Vulnerable › Vulnerabilities
CVE-2025-43521
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-12-12 · updated 2026-10-07
- Weakness: CWE-347
Description
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.3, macOS Tahoe 26.2. An app may be able to access sensitive user data.
Affected products
- Apple macOS: before 15.7.3 — fixed in 15.7.3
How to fix
Upgrade to a fixed version: Apple macOS 15.7.3. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2025-43521 or the next vulnerability affects your stack