CVE-2025-43390 — Improper Verification of Cryptographic Signature in Apple Macos

CWE-347 — Improper Verification of Cryptographic Signature5 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 99.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Apple Macos
Timeline
PublishedNov 4

Description

A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.2, macOS Tahoe 26.1. An app may be able to access user-sensitive data.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5apple/macos< 15.7.2+1
▶NVDapple/macos< 15.7.2

🔴Vulnerability Details

2
CVEList
CVE-2025-43390: A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions↗2025-11-04
▶
GHSA
GHSA-9g9q-p8c3-chfq: A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions↗2025-11-04
▶

📋Vendor Advisories

2
Apple
CVE-2025-43390: macOS Tahoe 26.1↗2025-11-03
▶
Apple
CVE-2025-43390: macOS Sequoia 15.7.2↗2025-11-03
▶
CVE-2025-43390 — Apple Macos vulnerability | cvebase