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.
Published: 2025-12-12
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Sensitive Data Exposure
Action: Patch Now
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 22 Apr 2026 21:15:00 +0000

Type Values Removed Values Added
Title Potential Sensitive Data Exposure via Downgrade on Intel‑based macOS

Thu, 02 Apr 2026 20:30:00 +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 Tahoe 26.2, 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 Sequoia 15.7.3, macOS Tahoe 26.2. An app may be able to access sensitive user data.

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

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-04-02T18:07:35.626Z

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: 2026-04-02T19:20:59.257

Link: CVE-2025-43521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T21:00:06Z

Weaknesses