Privilege escalation in Google Android
CVE-2021-39772
In Bluetooth, there is a possible way to access the a2dp audio control switch due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-181962322
Vulnerability class: Privilege Escalation
EPSS: 0.002 (9.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions 12.0
- N/a Android — versions Android-12L
Weakness classification (CWE)
References
- security@android.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39772?
- CVE-2021-39772 is a high-severity vulnerability in Google Android, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2022-03-30.
- How severe is CVE-2021-39772?
- High severity. CVSS v3 base score is 8.8 out of 10.