How severe is CVE-2018-4353?

CVE-2018-4353 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-4353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4353?

CVE-2018-4353 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4353?

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

When was CVE-2018-4353 published?

CVE-2018-4353 was published on 2019-04-03 and last updated on 2026-06-17.

CVE-2018-4353

CVE-2018-4353 is a critical-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 9.8. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Mac Os X
Published: 2019-04-03
Last modified: 2026-06-17

Description

A configuration issue was addressed with additional restrictions. This issue affected versions prior to macOS Mojave 10.14.

Frequently asked questions

What is CVE-2018-4353?: A configuration issue was addressed with additional restrictions. This issue affected versions prior to macOS Mojave 10.14.
How severe is CVE-2018-4353?: CVE-2018-4353 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-4353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4353?: CVE-2018-4353 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-4353 published?: CVE-2018-4353 was published on 2019-04-03 and last updated on 2026-06-17.

References

https://support.apple.com/kb/HT209139

Affected products (1)

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

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