How severe is CVE-2026-20623?

CVE-2026-20623 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-20623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-20623?

CVE-2026-20623 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-20623?

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

Does CVE-2026-20623 have an EU (EUVD) identifier?

Yes. CVE-2026-20623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5925.

When was CVE-2026-20623 published?

CVE-2026-20623 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2026-20623

CVE-2026-20623 is a medium-severity vulnerability in Apple Macos with a CVSS 3.x base score of 5.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5925
Weakness: CWE-200
Affected product: Apple Macos
Published: 2026-02-11
Last modified: 2026-06-17

Description

A permissions issue was addressed by removing the vulnerable code. This issue is fixed in macOS Tahoe 26.3. An app may be able to access protected user data.

Frequently asked questions

What is CVE-2026-20623?: A permissions issue was addressed by removing the vulnerable code. This issue is fixed in macOS Tahoe 26.3. An app may be able to access protected user data.
How severe is CVE-2026-20623?: CVE-2026-20623 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-20623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-20623?: CVE-2026-20623 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-20623?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20623 have an EU (EUVD) identifier?: Yes. CVE-2026-20623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5925.
When was CVE-2026-20623 published?: CVE-2026-20623 was published on 2026-02-11 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/126348

Affected products (1)

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

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