VULNERABILITY INTELLIGENCE
CVE-2021-39810
CVSS score7.8 HIGH
EPSS probability0.12%
CISA KEVNot currently listed
Published2023-10-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In verifyDefaults of CardEmulationManager.java, there is a possible way to set a third party app as the default contactless payment app without user consent 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.
Weakness classification
- CWE-862: Missing Authorization
Primary references
- security@android.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory