CVE-2025-43522 | BDVDB-2026-305756 Detail

ApplemacOS

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 user-sensitive data.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: local.

Weaknesses#

CWE-347 Improper Verification of Cryptographic Signature

References#

Exploit#

No public exploit known

History#

Version 12025-12-12Record published in the CVE List.
Version 22026-04-02Most recent update recorded in the CVE List.

Published

Published: 2025-12-12
Last modified: 2026-04-02

Vendor information

Vendor: Apple
Product: macOS

All Apple vulnerabilities

Score

3.3 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 1.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 15.7.3
Fixed
15.7.3
Vulnerable
< 26.2
Fixed
26.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

3.3 Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).