Auth bypass in Google Android
CVE-2020-0439
In generatePackageInfo of PackageManagerService.java, there is a possible permissions bypass due to an incorrect permission check. This could lead to local escalation of privilege that allows instant apps access to permissions not allowed for instant apps, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11 Android-8.0Android ID: A-140256621
Vulnerability class: Broken Access Control
EPSS: 0.002 (11.6th 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 8.0, 8.1, 9.0
- N/a Android — versions Android-8.1 Android-9 Android-10 Android-11 Android-8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-0439?
- CVE-2020-0439 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2020-11-10.
- How severe is CVE-2020-0439?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-0439 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.