CVE-2026-41020 — HIGH (7.5)

Vulnerability Description

Eaton easyE4 uses a static nonce during authentication, which could allow an unauthenticated attacker with access to captured authentication traffic to replay a valid authentication exchange and gain unauthorized access to the device.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-294

References

https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/secu

FAQ

What is CVE-2026-41020?

CVE-2026-41020 is a vulnerability with a CVSS score of 7.5 (HIGH). Eaton easyE4 uses a static nonce during authentication, which could allow an unauthenticated attacker with access to captured authentication traffic to replay a valid authentication exchange and gain ...

How severe is CVE-2026-41020?

CVE-2026-41020 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-41020?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.