CVE-2021-39635 json
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 app…
published 2022-02-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25992
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
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
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 9.4 | AV:N/AC:L/Au:N/C:C/I:C/A:N |
Affected products
- n/a Android
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
References
-
source.android.com
/security/bulletin/2022-02-01
vendor-advisory
Sources
- CVE List CVE-2021-39635
- NVD CVE-2021-39635
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