How severe is CVE-2026-28837?

CVE-2026-28837 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-28837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28837?

CVE-2026-28837 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28837?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-28837 have an EU (EUVD) identifier?

Yes. CVE-2026-28837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15109.

When was CVE-2026-28837 published?

CVE-2026-28837 was published on 2026-03-25 and last updated on 2026-06-17.

CVE-2026-28837

CVE-2026-28837 is a high-severity vulnerability in Apple Macos with a CVSS 3.x base score of 7.5. 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-15109
Weakness: CWE-284
Affected product: Apple Macos
Published: 2026-03-25
Last modified: 2026-06-17

Description

A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.

Frequently asked questions

What is CVE-2026-28837?: A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.
How severe is CVE-2026-28837?: CVE-2026-28837 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-28837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28837?: CVE-2026-28837 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28837?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-28837 have an EU (EUVD) identifier?: Yes. CVE-2026-28837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15109.
When was CVE-2026-28837 published?: CVE-2026-28837 was published on 2026-03-25 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/126794

Affected products (1)

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

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