CVE-2021-39778 json
In Telecomm, there is a possible way to determine whether an app is installed, without query permissions, due to improper input validation.
published 2022-03-30 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26135
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
Summary
In Telecomm, there is a possible way to determine whether an app is installed, without query permissions, due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-196406138
Exploit prediction
0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- n/a Android
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
source.android.com
/security/bulletin/android-12l
vendor-advisory
Sources
- CVE List CVE-2021-39778
- NVD CVE-2021-39778
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