Auth bypass in Google Android
CVE-2021-0390
In various methods of WifiNetworkSuggestionsManager.java, there is a possible modification of suggested networks due to a missing permission check. This could lead to local escalation of privilege by a background user on the same device with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-174749461
Vulnerability class: Broken Access Control
EPSS: 0.002 (15.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions 8.1, 9.0, 10.0
- N/a Android — versions Android-11 Android-8.1 Android-9 Android-10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0390?
- CVE-2021-0390 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2021-03-10.
- How severe is CVE-2021-0390?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-0390 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.