What’s Vulnerable › Vulnerabilities
CVE-2019-8634
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-12-18 · updated 2026-06-17
- Weakness: CWE-287
Description
An authentication issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.5. A user may be unexpectedly logged in to another user’s account.
Affected products
- macOS: before 10.12.6; before 10.14.5; from 10.13 before 10.13.6; 10.12.6, 10.12.6-security_update_2017-001, 10.12.6-security_update_2018-001, 10.12.6-security_update_2018-002, 10.12.6-security_update_2018-003, 10.12.6-security_update_2018-004 (+9) — fixed in 10.12.6, 10.13.6, 10.14.5
How to fix
Upgrade to a fixed version: macOS 10.12.6, 10.13.6, 10.14.5. Check the vendor advisory for mitigations.
References
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