What’s Vulnerable › Vulnerabilities

CVE-2023-0248: Kantech Gen1 ioSmart card reader

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-14 · updated 2026-06-17
• Weakness: CWE-200

Description

An attacker with physical access to the Kantech Gen1 ioSmart card reader with firmware version prior to 1.07.02 in certain circumstances can recover the reader's communication memory between the card and reader.

Affected products

• Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. ioSmart Gen1: before 1.07.02 — fixed in 1.07.02

How to fix

Upgrade to a fixed version: Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. ioSmart Gen1 1.07.02. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-02
• https://www.johnsoncontrols.com/cyber-solutions/security-advisories
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-02
• https://www.johnsoncontrols.com/cyber-solutions/security-advisories

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