7.5
HighCVSS 3.1 · from Eaton
CVE-2026-41020
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…
easyE4 · CWE-294 · CWE-294AffectedeasyE4
FixUpdate to 2.46 or newer
PublishedOct 27, 11:05 · Eaton
ScoredOct 27 · 7.5 · Eaton
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:07 UTC
What we know
No known exploitation. CISA KEV, checked 22:07 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
Someone has to open, click or run something first. CVSS: user interaction required.
A successful attack can read and change data and take the service down. CVSS: high impact on confidentiality, integrity and availability.
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.
From Eaton
Affected and fixed versions
ProductAffectedFixed ineasyE4before 2.462.46
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known