What is CVE-2021-39780?

CVE-2021-39780 is a high-severity vulnerability in Google Android, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2022-03-30.

How severe is CVE-2021-39780?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Google Android

CVE-2021-39780

In Traceur, there is a possible bypass of developer settings requirements for capturing system traces due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-204992293

Published 2022-03-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Google Android — versions 12.0
Android — versions Android-12L

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

source.android.com/security/bulletin/android-12l (Vendor Advisory)

Frequently asked questions

What is CVE-2021-39780?: CVE-2021-39780 is a high-severity vulnerability in Google Android, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2022-03-30.
How severe is CVE-2021-39780?: High severity. CVSS v3 base score is 7.8 out of 10.