How severe is CVE-2026-28834?

CVE-2026-28834 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-28834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28834?

CVE-2026-28834 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28834?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-28834 have an EU (EUVD) identifier?

Yes. CVE-2026-28834 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15105.

When was CVE-2026-28834 published?

CVE-2026-28834 was published on 2026-03-25 and last updated on 2026-06-17.

CVE-2026-28834

CVE-2026-28834 is a medium-severity vulnerability in Apple Macos with a CVSS 3.x base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-15105
Weakness: CWE-362
Affected product: Apple Macos
Published: 2026-03-25
Last modified: 2026-06-17

Description

A race condition was addressed with improved state handling. 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 cause unexpected system termination.

Frequently asked questions

What is CVE-2026-28834?: A race condition was addressed with improved state handling. 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 cause unexpected system termination.
How severe is CVE-2026-28834?: CVE-2026-28834 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-28834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28834?: CVE-2026-28834 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28834?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28834 have an EU (EUVD) identifier?: Yes. CVE-2026-28834 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15105.
When was CVE-2026-28834 published?: CVE-2026-28834 was published on 2026-03-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

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