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VulnerabilityPublished Updated

CVE-2025-43278: Apple macOS · An app may be able to access protected user data

Affects Apple macOSSource CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium : upgrade to 15.4 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 15.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Apple macOS to 15.4.

Affected software

ProductAffectedFixed in
ApplemacOSAffected
  • <15.4
Fixed in
  • 15.4

AI-suggested

This vulnerability is fixed in macOS Sequoia 15.4. Users and administrators should update affected systems to macOS 15.4 or later to remediate this issue. Patch status is confirmed by the vendor advisory stating the issue is addressed in version 15.4. No additional mitigation steps are specified.

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.

References

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