CVE-2023-43776
Weak encoding vulnerability in easyE4
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Weak encoding vulnerability in easyE4
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).
- Record
CVE-2023-43776- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-261
- Updated
- 2026-11-02
EUVDEUVD-2023-48153
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).
- Record
EUVD-2023-48153- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-35hg-f9qq-236g
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure...
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).
- Record
GHSA-35hg-f9qq-236g- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-261, CWE-326
- Updated
- 2026-11-02
NVD
Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).
- Record
CVE-2023-43776- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-261, CWE-326
- Updated
- 2026-11-02
Affected products
- eaton easye4
- eaton easy-box-e4-ac1 firmware
- eaton easy-box-e4-dc1 firmware
- eaton easy-box-e4-uc1 firmware
- eaton easy-e4-ac-12rc1p firmware
- eaton easy-e4-ac-12rcx1p firmware
- eaton easy-e4-ac-16re1p firmware
- eaton easy-e4-dc-12tc1p firmware
- eaton easy-e4-dc-12tcx1p firmware
- eaton easy-e4-dc-16te1p firmware
- eaton easy-e4-dc-4pe1p firmware
- eaton easy-e4-dc-6ae1p firmware
Show 11 moreShow less
- eaton easy-e4-dc-8te1p firmware
- eaton easy-e4-uc-12rc1p firmware
- eaton easy-e4-uc-12rcx1p firmware
- eaton easy-e4-uc-16re1 firmware
- eaton easy-e4-uc-16re1p firmware
- eaton easy-e4-uc-8re1p firmware
- eaton easy e4-ac-8re1p firmware
- eaton xv-102-a035tqrb-1e4 firmware
- eaton xv-102-a3-57tvrb-1e4 firmware
- eaton xv100-box-e4-dc1 firmware
- eaton xv100-box-e4-uc1 firmware
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-2023-43776 is a medium vulnerability (CVSS 6.8) in Eaton Easye4, published October 17, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.