CVE-2026-41021 Eaton easyE4 - Authentication Bypass

Eaton easyE4 contains a broken authentication caused by insufficiently strong password policy, letting attackers with password hashes perform offline password-guessing attacks, exploit requires attacker to have password hashes.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
27 October 2026
Updated
29 October 2026
Weakness
CWE-521

Vendor fix

Implement a stronger password policy and protect password hashes; update to latest version if available.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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