CVE-2021-39794 — HIGH (7.8)

Vulnerability Description

In broadcastPortInfo of AdbService.java, there is a possible way for apps to run code as the shell user, if wireless debugging is enabled, due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-205836329

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	11.0

Related Weaknesses (CWE)

CWE-276

References

https://source.android.com/security/bulletin/2022-04-01Vendor Advisory
https://source.android.com/security/bulletin/2022-04-01Vendor Advisory

FAQ

What is CVE-2021-39794?

CVE-2021-39794 is a vulnerability with a CVSS score of 7.8 (HIGH). In broadcastPortInfo of AdbService.java, there is a possible way for apps to run code as the shell user, if wireless debugging is enabled, due to a missing permission check. This could lead to local e...

How severe is CVE-2021-39794?

CVE-2021-39794 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-39794?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.