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CVE-2026-28827

Apple macOS path traversal

9.3 CRITICALEPSS 0.21%
  1. Published25 Mar 2026

Description

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Apple macOS≥ 14.0 < 14.8.5 · ≥ 15.0 < 15.7.5 · ≥ 26.0 < 26.4

References

Frequently asked

Is CVE-2026-28827 being actively exploited?

CVE-2026-28827 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.21%.

How severe is CVE-2026-28827?

CVE-2026-28827 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.21% probability of exploitation.

Which products are affected by CVE-2026-28827?

Affected products include Apple macOS.

How do I fix CVE-2026-28827?

Upgrade affected software to a fixed version, for example Apple macOS 14.8.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-28827 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.