What is CVE-2017-13889?

CVE-2017-13889 is a critical-severity vulnerability in Apple Mac OS X, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-01-11.

How severe is CVE-2017-13889?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Apple Mac OS X

CVE-2017-13889

In macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan, a logic error existed in the validation of credentials. This was addressed with improved credential validation.

Vulnerability class: Broken Authentication

EPSS: 0.011 (61.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Mac_os_x
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-13889?: CVE-2017-13889 is a critical-severity vulnerability in Apple Mac OS X, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-01-11.
How severe is CVE-2017-13889?: Critical severity. CVSS v3 base score is 9.8 out of 10.