What is CVE-2021-39796?

CVE-2021-39796 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.3/10. Published 2022-04-12.

How severe is CVE-2021-39796?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Google Android

CVE-2021-39796

In HarmfulAppWarningActivity of HarmfulAppWarningActivity.java, there is a possible way to trick victim to install harmful app due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-205595291

EPSS: 0.002 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 10.0, 11.0, 12.0
N/a Android — versions Android-10 Android-11 Android-12 Android-12L

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39796?: CVE-2021-39796 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.3/10. Published 2022-04-12.
How severe is CVE-2021-39796?: High severity. CVSS v3 base score is 7.3 out of 10.