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CVE-2023-43776

20
FAUCET Score

CVE-2023-43776 describes a vulnerability in Eaton easyE4 PLCs where the device password, intended for secure access, is stored using a weak encoding algorithm within the *.PRG program file when exported to an SD card. This flaw, rated Medium severity (CVSS 6.6), allows an attacker with physical access to the SD card to potentially recover the password, leading to high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.02CPE matchmatch criteria
cpe:2.3:o:eaton:easy-box-e4-ac1_firmware:*:*:*:*:*:*:*:*
< 2.02CPE matchmatch criteria
cpe:2.3:o:eaton:easy-box-e4-dc1_firmware:*:*:*:*:*:*:*:*
< 2.02CPE matchmatch criteria
cpe:2.3:o:eaton:easy-box-e4-uc1_firmware:*:*:*:*:*:*:*:*
< 2.02CPE matchmatch criteria
cpe:2.3:o:eaton:easy-e4-ac-12rc1p_firmware:*:*:*:*:*:*:*:*
< 2.02CPE matchmatch criteria
cpe:2.3:o:eaton:easy-e4-ac-12rcx1p_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.2
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.12%
Probability of exploitation in next 30 days
EPSS Percentile
2.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0012 is in the 25th percentile among its peer group of 72 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

eaton.com / content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/etn-va-2023-1010.pdf
MitigationVendor Advisory