CVE-2021-39658: Google Android

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。Product: AndroidVersions: Android SoCAndroid ID: A-207479207

Affected products

• Google Android: affected versions not specified

Published 2022-02-11. Last modified 2026-06-17.