How severe is CVE-2019-8643?

CVE-2019-8643 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-2019-8643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8643?

CVE-2019-8643 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8643?

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-2019-8643 published?

CVE-2019-8643 was published on 2021-12-23 and last updated on 2026-06-17.

CVE-2019-8643

CVE-2019-8643 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.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Mac Os X
Published: 2021-12-23
Last modified: 2026-06-17

Description

CVE-2019-8643: Arun Sharma of VMWare This issue is fixed in macOS Mojave 10.14. Description: A logic issue was addressed with improved state management..

Frequently asked questions

What is CVE-2019-8643?: CVE-2019-8643: Arun Sharma of VMWare This issue is fixed in macOS Mojave 10.14. Description: A logic issue was addressed with improved state management..
How severe is CVE-2019-8643?: CVE-2019-8643 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-2019-8643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8643?: CVE-2019-8643 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8643?: 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-2019-8643 published?: CVE-2019-8643 was published on 2021-12-23 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/HT209139

Affected products (1)

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

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