CVE-2023-35671

Severity: medium (CVSS 5.5 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: 2023-09-11 · updated 2026-06-17
Weakness: CWE-269

Description

In onHostEmulationData of HostEmulationManager.java, there is a possible way for a general purpose NFC reader to read the full card number and expiry details when the device is in locked screen mode due to a logic error in the code. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 11.0, 12.0, 12.1, 13.0

References

https://android.googlesource.com/platform/packages/apps/Nfc/+/745632835f3d97513a9c2a96e56e1dc06c4e4176
https://source.android.com/security/bulletin/2023-09-01
https://android.googlesource.com/platform/packages/apps/Nfc/+/745632835f3d97513a9c2a96e56e1dc06c4e4176
https://source.android.com/security/bulletin/2023-09-01

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