How severe is CVE-2018-4295?

CVE-2018-4295 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-2018-4295 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4295?

CVE-2018-4295 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4295?

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-2018-4295 published?

CVE-2018-4295 was published on 2019-04-03 and last updated on 2026-06-17.

CVE-2018-4295

CVE-2018-4295 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% (68th 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

An input validation issue was addressed with improved input validation. This issue affected versions prior to macOS Mojave 10.14.

Frequently asked questions

What is CVE-2018-4295?: An input validation issue was addressed with improved input validation. This issue affected versions prior to macOS Mojave 10.14.
How severe is CVE-2018-4295?: CVE-2018-4295 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-2018-4295 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4295?: CVE-2018-4295 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4295?: 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-2018-4295 published?: CVE-2018-4295 was published on 2019-04-03 and last updated on 2026-06-17.

References

Affected products (1)

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

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