CVE-2026-59776: Missing cryptographic step in Sony Corporation FeliCa IC chips
A vulnerability identified as CVE-2026-59776 affects certain Sony Corporation FeliCa IC chips shipped in or before 2017. The issue is a missing cryptographic step that could allow unauthorized reading or tampering of information stored on the chip. The vulnerability has a CVSS score of 6.8, indicating a medium severity level. No specific affected versions or patch information is provided. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-59776 describes a Missing Cryptographic Step vulnerability (CWE-325) in Sony Corporation's FeliCa IC chips shipped in or before 2017. This cryptographic omission may permit attackers to read or modify data stored on the chip without proper authorization. The vulnerability has a CVSS 3.0 base score of 6.8, reflecting medium severity with high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no exploits are known in the wild.
Potential Impact
Successful exploitation could lead to unauthorized disclosure and modification of sensitive data stored on affected FeliCa IC chips, impacting confidentiality, integrity, and availability of the chip's data. This could undermine the security of systems relying on these chips for authentication or secure transactions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is documented, users should monitor Sony Corporation's advisories for updates. Avoid deploying affected chips in new systems until remediation is available.
CVE-2026-59776: Missing cryptographic step in Sony Corporation FeliCa IC chips
Description
A vulnerability identified as CVE-2026-59776 affects certain Sony Corporation FeliCa IC chips shipped in or before 2017. The issue is a missing cryptographic step that could allow unauthorized reading or tampering of information stored on the chip. The vulnerability has a CVSS score of 6.8, indicating a medium severity level. No specific affected versions or patch information is provided. There are no known exploits in the wild at this time.
CVSS v3.0
Score 6.8medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-59776 describes a Missing Cryptographic Step vulnerability (CWE-325) in Sony Corporation's FeliCa IC chips shipped in or before 2017. This cryptographic omission may permit attackers to read or modify data stored on the chip without proper authorization. The vulnerability has a CVSS 3.0 base score of 6.8, reflecting medium severity with high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no exploits are known in the wild.
Potential Impact
Successful exploitation could lead to unauthorized disclosure and modification of sensitive data stored on affected FeliCa IC chips, impacting confidentiality, integrity, and availability of the chip's data. This could undermine the security of systems relying on these chips for authentication or secure transactions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is documented, users should monitor Sony Corporation's advisories for updates. Avoid deploying affected chips in new systems until remediation is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-07-09T08:23:34.922Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5eea9a2a4a8d598976d86f
Added to database: 07/21/2026, 03:42:18 UTC
Last enriched: 07/21/2026, 03:56:38 UTC
Last updated: 07/21/2026, 08:50:55 UTC
Views: 11
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