Vulnerability in certain IC chips of contactless IC card "FeliCa"
Source JVN Japan
Rated by Threat Radar
Data as of 4 Aug 2026, 13:28 UTC
What to do
AI-suggested
In the absence of official fixes or advisories, users and integrators of affected FeliCa IC chips should monitor updates from Sony Corporation and relevant security advisories. No specific mitigation steps are provided in the available information.
Description
Certain FeliCa contactless IC chips shipped by Sony Corporation in or before 2017 have a vulnerability where a specific operation during cryptographic processing may weaken the intended security strength. This could potentially reduce the effectiveness of the chip's cryptographic protections. No specific affected versions or patch information is provided. There is no evidence of known exploits in the wild at this time.