Cryptographic Vulnerability in FeliCa IC Chips by Sony
CVE-2026-59776

7HIGH

Key Information:

Vendor

Sony Corporation

Status
Felica Ic Chips
Vendor
CVE Published:
21 July 2026

What is CVE-2026-59776?

A cryptographic vulnerability exists in certain FeliCa IC chips manufactured and distributed by Sony prior to 2017. This vulnerability allows unauthorized access to information stored within the IC chips, potentially enabling attackers to read or manipulate sensitive data. As these chips are widely used in various applications, the risk of exploitation poses significant concerns regarding data integrity and security.

Affected Version(s)

FeliCa IC chips shipped in or before 2017

References

https://www.sony.co.jp/en/Products/felica/business/inform...
https://jvn.jp/en/jp/JVN40509781/

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

CVSS V3.0

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.