CVE-2026-28640: Google Android

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In checkCallerIsCertInstallerOrSelfInProfile of CredentialStorageActivity.java, there is a possible permission bypass due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

• Google Android: version 14.0 only; version 15.0 only; version 16.0 only

Published 2026-10-05. Last modified 2026-10-07.