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.
History

Wed, 04 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 28 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Eaton
Eaton easye4
Vendors & Products Eaton
Eaton easye4

Tue, 27 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Title Replay Attack via Static Nonce in Eaton easyE4 Authentication

Tue, 27 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-294
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Eaton

Published: 2026-10-27T11:05:51.545Z

Updated: 2026-11-04T20:29:24.866Z

Reserved: 2026-04-16T05:27:09.485Z

Link: CVE-2026-41020

cve-icon Vulnrichment

Updated: 2026-11-04T18:45:40.982Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-27T12:17:07.670

Modified: 2026-11-04T21:18:13.523

Link: CVE-2026-41020

cve-icon Redhat

No data.