CVE-2020-27059

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-01-11 · updated 2026-06-17
Weakness: CWE-1021

Description

In onAuthenticated of AuthenticationClient.java, there is a possible tapjacking attack when requesting the user's fingerprint due to an overlaid window. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, 11; Android ID: A-159249069.

Affected products

Android: 8.0, 8.1, 9.0, 10.0, 11.0

References

https://source.android.com/security/bulletin/pixel/2021-01-01
https://source.android.com/security/bulletin/pixel/2021-01-01

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