How severe is CVE-2019-8629?

CVE-2019-8629 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-8629 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-2019-8629?

CVE-2019-8629 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8629?

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-2019-8629 published?

CVE-2019-8629 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-8629

CVE-2019-8629 is a high-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 7.8. 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-665.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Apple Mac Os X
Published: 2019-12-18
Last modified: 2026-06-17

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.5. An application may be able to execute arbitrary code with system privileges.

Frequently asked questions

What is CVE-2019-8629?: A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.5. An application may be able to execute arbitrary code with system privileges.
How severe is CVE-2019-8629?: CVE-2019-8629 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-8629 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-2019-8629?: CVE-2019-8629 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8629?: 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-2019-8629 published?: CVE-2019-8629 was published on 2019-12-18 and last updated on 2026-06-17.

References

https://support.apple.com/HT210119

Affected products (1)

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

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