CVE-2025-34186: Ilevia EVE X1/X5 Server version ≤ 4.7.18.0.eden contains a vulnerability in its authentication mechanism

Q: How do I fix CVE-2025-34186?

eve x1 server firmware: upgrade to newer than 4.7.18.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-34186 being exploited?

CVE-2025-34186 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-34186 affect?

CVE-2025-34186 affects eve x1 server firmware. Severity is critical (CVSS 9.8). 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 comm

Q: How urgent is CVE-2025-34186?

Priority 62/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-34186 is a critical-severity flaw (CVSS 9.8) affecting eve x1 server firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-78, CWE-287
Published	2025-09-16
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: ilevia

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-16 20:15 UTCPublished CVE record published
2026-06-17 09:13 UTCUpdated Record last modified

ilevia eve x1 server firmware UPGRADE

Affected: <= 4.7.18.0

Fixed in: newer than 4.7.18.0

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

Fedora 46 · pipx · FIXED · 1.18.9-1.fc46 · FEDORA-2026-95305954ab · source

sudo dnf upgrade --advisory=FEDORA-2026-95305954ab

Fedora ELN · libisds · FIXED · 0.11.2-19.eln159 · FEDORA-2026-bf61b68668 · source

sudo dnf upgrade --advisory=FEDORA-2026-bf61b68668

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.zeroscience.mk/en/vulnerabilities/ZSL-2025-5958.php

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-34186?

eve x1 server firmware: upgrade to newer than 4.7.18.0. Exact commands for each OS are on this page.

Is CVE-2025-34186 being exploited?

CVE-2025-34186 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-34186 affect?

CVE-2025-34186 affects eve x1 server firmware. Severity is critical (CVSS 9.8). 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 comm

How urgent is CVE-2025-34186?

Priority 62/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-34513 CRITICAL 9.8 UPGRADE Ilevia EVE X1 Server firmware versions ≤ 4.7.18.0.eden contain an OS command injection vulnerability in mbus_b
CVE-2025-34515 CRITICAL 9.8 UPGRADE Ilevia EVE X1 Server firmware versions ≤ 4.7.18.0.eden contain an execution with unnecessary privileges vulner
CVE-2025-34514 HIGH 8.8 UPGRADE Ilevia EVE X1 Server firmware versions ≤ 4.7.18.0.eden contain authenticated OS command injection vulnerabilit
CVE-2025-34516 CRITICAL 9.8 UPGRADE Ilevia EVE X1 Server firmware versions ≤ 4.7.18.0.eden contain a use of default credentials vulnerability that
CVE-2025-34517 HIGH 7.5 UPGRADE Ilevia EVE X1 Server firmware versions ≤ 4.7.18.0.eden contain an absolute path traversal vulnerability in get

References

← Back to latest CVEs