Is CVE-2025-43278 in the CISA KEV catalog?

No. CVE-2025-43278 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-43278?

CVE-2025-43278 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2025-43278?

CVE-2025-43278 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-43278?

Upgrade macos to 15.4 or later.

CVE & CISA-KEV Catalog

CVE-2025-43278

MEDIUM

5.5

CVSS v3

NVD

Description

This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data.

CWE-61

How to fix

Remediation Available

macosNVD

Affected:< 15.4Fixed in:15.4CVE-2025-43278derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Vendor Advisory1

support.apple.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-15.