CVE-2025-43521CWE-347

CVE-2025-43521

Medium · published December 13, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
2.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00132 · 2.5th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2025-12-13T02:15Z
Affected products (1)
ProductVersionsFixed in
apple/macos< 15.7.315.7.3
References (2)
https://support.apple.com/en-us/125886 · [email protected]https://support.apple.com/en-us/125887 · [email protected]
EPSS history
Timeline
  • 12 DEC 20:56Z
    A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions
    cvelistv5