CVE-2026-28823

MEDIUMCVSS 4.9/10EPSS 0.29%

Last modified

CVE-2026-28823 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. A path handling issue was addressed with improved validation. This issue is fixed in macOS Tahoe 26.4. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

A path handling issue was addressed with improved validation. This issue is fixed in macOS Tahoe 26.4. An app with root privileges may be able to delete protected system files.

Metrics

CVSS 3.1
4.9/10

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

EPSS Probability
0.29%

21.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AppleMacos>= 26.0, < 26.4

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-28823?
A path handling issue was addressed with improved validation. This issue is fixed in macOS Tahoe 26.4. An app with root privileges may be able to delete protected system files.
How severe is CVE-2026-28823?
CVE-2026-28823 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2026-28823?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-28823?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST