What is CVE-2021-39629?

CVE-2021-39629 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2022-01-14.

How severe is CVE-2021-39629?

High severity. CVSS v3 base score is 7.0 out of 10.

Use After Free in Google Android

CVE-2021-39629

In phTmlNfc_Init and phTmlNfc_CleanUp of phTmlNfc.cc, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-197353344

Vulnerability class: Race Condition

EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 9.0, 10.0, 11.0
N/a Android — versions Android-10 Android-11 Android-12 Android-9

Weakness classification (CWE)

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39629?: CVE-2021-39629 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2022-01-14.
How severe is CVE-2021-39629?: High severity. CVSS v3 base score is 7.0 out of 10.