Vulnerability · Published Feb 11, 2022 · Assigned by google_android

CVE-2021-39635

Critical 9.1

In plain English

A critical-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS NVD)9.1Critical

Exploit odds (30 days)0.5%top 56.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

ims_ex is a vendor system service used to manage VoLTE in unisoc devices，But it does not verify the caller's permissions，so that normal apps (No phone permissions) can obtain some VoLTE sensitive information and manage VoLTE calls.Product: AndroidVersions: Android SoCAndroid ID: A-206492634

Affected products (as reported)

Vendor	Product	Versions
n/a	Android	Android SoC

References

https://source.android.com/security/bulletin/2022-02-01 x_refsource_MISC