Weak encoding vulnerability in easyE4
Priority LOW 31CWE-261Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-326.
Summary
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).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00139 3rd percentileScored 2026-11-07
Fix Fixed easyE4 (Eaton): 2.02
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eaton | easyE4 | before 2.02 | 2.02 | Patch available | CNA |
- easyE4 VendorEaton Affected before 2.02 Fixed in 2.02 Patch available CNA
CPE configurations NVD · 44
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:eaton:easy-box-e4-ac1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-box-e4-ac1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-box-e4-dc1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-box-e4-dc1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-box-e4-uc1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-box-e4-uc1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-ac-12rc1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-ac-12rc1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-ac-12rcx1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-ac-12rcx1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
- cpe:2.3:o:eaton:easy-box-e4-ac1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-box-e4-ac1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-box-e4-dc1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-box-e4-dc1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-box-e4-uc1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-box-e4-uc1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-ac-12rc1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-ac-12rc1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-ac-12rcx1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-ac-12rcx1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
Show 34 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:eaton:easy-e4-ac-16re1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-ac-16re1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy_e4-ac-8re1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy_e4-ac-8re1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-12tc1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-12tc1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-12tcx1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-12tcx1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-16te1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-16te1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-4pe1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-4pe1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-6ae1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-6ae1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-dc-8te1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-dc-8te1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-uc-12rc1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-uc-12rc1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-uc-12rcx1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-uc-12rcx1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-uc-16re1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-uc-16re1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-uc-16re1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-uc-16re1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:easy-e4-uc-8re1p_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:easy-e4-uc-8re1p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:xv-102-a035tqrb-1e4_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:xv-102-a035tqrb-1e4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:xv-102-a3-57tvrb-1e4_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:xv-102-a3-57tvrb-1e4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:xv100-box-e4-dc1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:xv100-box-e4-dc1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
| cpe:2.3:o:eaton:xv100-box-e4-uc1_firmware:*:*:*:*:*:*:*:* | before 2.02 | Vulnerable | Eaton |
| cpe:2.3:h:eaton:xv100-box-e4-uc1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eaton |
- cpe:2.3:o:eaton:easy-e4-ac-16re1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-ac-16re1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy_e4-ac-8re1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy_e4-ac-8re1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-12tc1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-12tc1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-12tcx1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-12tcx1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-16te1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-16te1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-4pe1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-4pe1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-6ae1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-6ae1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-dc-8te1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-dc-8te1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-uc-12rc1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-uc-12rc1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-uc-12rcx1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-uc-12rcx1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-uc-16re1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-uc-16re1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-uc-16re1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-uc-16re1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:easy-e4-uc-8re1p_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:easy-e4-uc-8re1p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:xv-102-a035tqrb-1e4_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:xv-102-a035tqrb-1e4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:xv-102-a3-57tvrb-1e4_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:xv-102-a3-57tvrb-1e4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:xv100-box-e4-dc1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:xv100-box-e4-dc1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
- cpe:2.3:o:eaton:xv100-box-e4-uc1_firmware:*:*:*:*:*:*:*:* Versions before 2.02 Vulnerable ·Eaton
- cpe:2.3:h:eaton:xv100-box-e4-uc1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eaton
Remediation
- Fix · CNA easyE4 (Eaton) Fixed in 2.02
Timeline
- 2026-10-02 Threatist record created from CVE-2023-43776
- 2026-10-03 Alias added: GHSA-35hg-f9qq-236g
References
Sources
- CVE-2023-43776 · CVE Program
- CVE-2023-43776 · NVD
- FIRST EPSS
- GHSA-35hg-f9qq-236g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences