CVE-2023-0248
Kantech Gen1 ioSmart card reader
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Kantech Gen1 ioSmart card reader
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.
- Record
CVE-2023-0248- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L - Weakness
- CWE-200, CWE-401
- Updated
- 2026-11-02
EUVDEUVD-2023-12329
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.
- Record
EUVD-2023-12329- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6ww3-v82p-jv78
An attacker with physical access to the Kantech Gen1 ioSmart card reader with firmware version...
An attacker with physical access to the Kantech Gen1 ioSmart card reader with firmware version prior to 1.7.2 in certain circumstances can recover the reader's communication memory between the card and reader.
- Record
GHSA-6ww3-v82p-jv78- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L - Weakness
- CWE-200, CWE-401
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-0248- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-401
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-0248 is a high vulnerability (CVSS 7.5) in Johnsoncontrols Iosmart Gen 1 Firmware, published December 14, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.