CVE-2021-0933

Severity: high (CVSS 8.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-15 · updated 2026-06-17
Weakness: CWE-20

Description

In onCreate of CompanionDeviceActivity.java or DeviceChooserActivity.java, there is a possible way for HTML tags to interfere with a consent dialog due to improper input validation. This could lead to remote escalation of privilege, confusing the user into accepting pairing of a malicious Bluetooth device, with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-172251622

Affected products

Android: 9.0, 10.0, 11.0, 12.0

References

https://source.android.com/security/bulletin/2021-11-01
https://source.android.com/security/bulletin/2021-11-01

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