CVE-2026-59776: Missing cryptographic step in Sony Corporation FeliCa IC chips
Missing Cryptographic Step (CWE-325) vulnerability exists in certain FeliCa IC chips shipped in or before 2017. If the vulnerability is exploited, information stored in the IC chip may be read or tampered with.
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
Missing Cryptographic Step (CWE-325) vulnerability exists in certain FeliCa IC chips shipped in or before 2017. If the vulnerability is exploited, information stored in the IC chip may be read or tampered with.
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: 09/02/2026, 22:52:13 UTC
Views: 111
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