Vulnerability · Published Apr 12, 2022 · Assigned by google_android
CVE-2021-39807
High 7.8
In plain English
A high-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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
Affected products (as reported)
References
- https://source.android.com/security/bulletin/2022-04-01 x_refsource_MISC