CVE-2021-0645 json
In shouldBlockFromTree of ExternalStorageProvider.java, there is a possible permissions bypass.
published 2021-08-17 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-3264
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
In shouldBlockFromTree of ExternalStorageProvider.java, there is a possible permissions bypass. This could lead to local escalation of privilege, allowing an app to read private app directories in external storage, which should be restricted in Android 11, with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-157320644
Patch / fix
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- n/a Android
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
source.android.com
/security/bulletin/2021-08-01
patch, vendor-advisory
Sources
- CVE List CVE-2021-0645
- NVD CVE-2021-0645
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