CVE-2021-0313

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-11 · updated 2026-06-17
Weakness: CWE-20

Description

In isWordBreakAfter of LayoutUtils.cpp, there is a possible way to slow or crash a TextView due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-9, Android-10, Android-11, Android-8.0, Android-8.1; Android ID: A-170968514.

Affected products

Android: 8.0, 8.1, 9.0, 10.0, 11.0

References

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

Get alerted when CVE-2021-0313 or the next vulnerability affects your stack