CVE-2023-21272

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-14 · updated 2026-06-17
Weakness: CWE-20

Description

In readFrom of Uri.java, there is a possible bad URI permission grant due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 11.0, 12.0, 12.1

References

https://android.googlesource.com/platform/frameworks/base/+/4dea696369a309cf39daa3e94fec7156c290a9c2
https://source.android.com/security/bulletin/2023-08-01
https://android.googlesource.com/platform/frameworks/base/+/4dea696369a309cf39daa3e94fec7156c290a9c2
https://source.android.com/security/bulletin/2023-08-01

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