CVE-2025-34186: Ilevia EVE X1/X5 Server 4.7.18.0.eden Authentication Bypass

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-16 · updated 2026-06-17
Weakness: CWE-78

Description

Ilevia EVE X1/X5 Server version ≤ 4.7.18.0.eden contains a vulnerability in its authentication mechanism. Unsanitized input is passed to a system() call for authentication, allowing attackers to inject special characters and manipulate command parsing. Because the binary interprets non-zero exit codes from system() as successful authentication, remote attackers can bypass authentication and gain full access to the system.

Affected products

Ilevia Srl. EVE X1 Server: through 4.7.18.0

References

https://packetstorm.news/files/id/208871/
https://www.ilevia.com/
https://www.vulncheck.com/advisories/ilevia-eve-x1-x5-server-auth-bypass
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2025-5958.php

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