A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Tahoe 26.2, macOS Sequoia 15.7.3. An app may be able to access sensitive user data.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 17 Dec 2025 21:00:00 +0000

Type Values Removed Values Added
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. An app may be able to access sensitive user data. A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Tahoe 26.2, macOS Sequoia 15.7.3. An app may be able to access sensitive user data.
References

Mon, 15 Dec 2025 22:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Mon, 15 Dec 2025 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-347
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 14 Dec 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Fri, 12 Dec 2025 21:15:00 +0000

Type Values Removed Values Added
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. An app may be able to access sensitive user data.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2025-12-17T20:46:26.558Z

Reserved: 2025-04-16T15:27:21.196Z

Link: CVE-2025-43521

cve-icon Vulnrichment

Updated: 2025-12-15T17:05:59.152Z

cve-icon NVD

Status : Modified

Published: 2025-12-12T21:15:56.927

Modified: 2025-12-17T21:16:10.897

Link: CVE-2025-43521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-14T21:15:42Z

Weaknesses