CVE-2019-8634: High severity macos mojave vulnerability

Published May 13, 2019
·
Updated

EFI. An authentication issue was addressed with improved state management.

Other sources

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.

Credit

Jenny Sprenger, Maik Hoepfel

Affected Software

21 affected componentsFixes available
Apple macOS Mojave<10.14.5
10.14.5
Apple High Sierra
Apple Sierra
Apple iOS and macOS<10.12.6
Apple iOS and macOS<10.14.5
Apple iOS and macOS>=10.13<10.13.6
Apple iOS and macOS=10.12.6
Apple iOS and macOS=10.12.6-security_update_2017-001
Apple iOS and macOS=10.12.6-security_update_2018-001
Apple iOS and macOS=10.12.6-security_update_2018-002
Apple iOS and macOS=10.12.6-security_update_2018-003
Apple iOS and macOS=10.12.6-security_update_2018-004
Apple iOS and macOS=10.12.6-security_update_2018-005
Apple iOS and macOS=10.12.6-security_update_2018-006
Apple iOS and macOS=10.12.6-security_update_2019-001
Apple iOS and macOS=10.12.6-security_update_2019-002
Apple iOS and macOS=10.13.6
Apple iOS and macOS=10.13.6-security_update_2018-002
Apple iOS and macOS=10.13.6-security_update_2018-003
Apple iOS and macOS=10.13.6-security_update_2019-001
Apple iOS and macOS=10.13.6-security_update_2019-002

Event History

Dec 18, 2019
CVE Published
via MITRE·05:33 PM
Data Sourced
via MITRE·05:33 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2019-8634?

CVE-2019-8634 is an authentication issue in macOS Mojave 10.14.5 and earlier, which allows a user to be unexpectedly logged into another user's account.

2

What is the severity of CVE-2019-8634?

CVE-2019-8634 has a severity score of 8.8 (high).

3

Which versions of macOS Mojave are affected by CVE-2019-8634?

CVE-2019-8634 affects macOS Mojave versions up to and excluding 10.14.5.

4

How can I fix the authentication issue in macOS Mojave?

To fix the authentication issue in macOS Mojave, update to version 10.14.5 or later.

5

Where can I find more information about CVE-2019-8634?

You can find more information about CVE-2019-8634 at the following references: [Link 1](https://support.apple.com/en-us/HT210119), [Link 2](https://support.apple.com/HT210119).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203