How severe is CVE-2014-4427?

CVE-2014-4427 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-4427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4427?

CVE-2014-4427 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-4427?

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.

When was CVE-2014-4427 published?

CVE-2014-4427 was published on 2014-10-18 and last updated on 2026-06-17.

CVE-2014-4427

CVE-2014-4427 is a high-severity vulnerability in Apple Mac Os X with a CVSS 2.0 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-264.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Apple Mac Os X
Published: 2014-10-18
Last modified: 2026-06-17

Description

App Sandbox in Apple OS X before 10.10 allows attackers to bypass a sandbox protection mechanism via the accessibility API.

Frequently asked questions

What is CVE-2014-4427?: App Sandbox in Apple OS X before 10.10 allows attackers to bypass a sandbox protection mechanism via the accessibility API.
How severe is CVE-2014-4427?: CVE-2014-4427 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-4427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4427?: CVE-2014-4427 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-4427?: 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.
When was CVE-2014-4427 published?: CVE-2014-4427 was published on 2014-10-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

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