CVE-2021-39807 — HIGH (7.8)

Vulnerability Description

In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-209446496

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	10.0

Related Weaknesses (CWE)

CWE-269

References

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

FAQ

What is CVE-2021-39807?

CVE-2021-39807 is a vulnerability with a CVSS score of 7.8 (HIGH). In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from...

How severe is CVE-2021-39807?

CVE-2021-39807 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-2021-39807?

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