High severity7.8NVD Advisory· Published Apr 12, 2022· Updated Jun 17, 2026

CVE-2021-39807

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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Google/Android SDKcpe-rescue
Google/Androidllm-fuzzy
Range: Android-10, Android-11, Android-12, Android-12L

Patches

Vulnerability mechanics

References

source.android.com/security/bulletin/2022-04-01nvdPatchVendor Advisory

News mentions

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