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CVE-2023-0248

Kantech Gen1 ioSmart card reader

MEDIUM
5.3
CVSS Score
Published: December 14, 2023 at 08:57 PM UTC
Updated: June 17, 2026 at 05:25 AM UTC
3 products affected across 2 vendorsIosmart Gen 1 FirmwareIosmart Gen 1Iosmart Gen 1

Using ioSmart Gen1 by Sensormatic Electronics, a subsidiary of Johnson Controls, Inc.?

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Iosmart Gen 1 Firmware· Johnsoncontrols
95%
v < 1.07.02
Affected range stops below 1.07.02, so it looks safe — our inference, not a vendor statement
johnsoncontrols-iosmart-gen-1 (same device)
Iosmart Gen 1· Sensormatic a Subsidiary of Johnson Controls
60%
v < 1.07.02
Affected range stops below 1.07.02, so it looks safe — our inference, not a vendor statement
Iosmart Gen 1· Johnsoncontrolsdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Third Party AdvisoryUS Government Resource
Source: [email protected]
https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-02
Vendor Advisory
Source: [email protected]
https://www.johnsoncontrols.com/cyber-solutions/security-advisories

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200CWE-401

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