What’s Vulnerable › Vulnerabilities
CVE-2019-8539
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-27 · updated 2026-06-17
Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra. A malicious application may be able to execute arbitrary code with system privileges.
Affected products
- macOS: from 10.14.5 before 10.14.6 — fixed in 10.14.6
How to fix
Upgrade to a fixed version: macOS 10.14.6. Check the vendor advisory for mitigations.
References
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