How severe is CVE-2025-34186?

CVE-2025-34186 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-34186 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34186?

CVE-2025-34186 affects Ilevia Eve X1 Server Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34186?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-34186 have an EU (EUVD) identifier?

Yes. CVE-2025-34186 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29645.

When was CVE-2025-34186 published?

CVE-2025-34186 was published on 2025-09-16 and last updated on 2026-06-17.

CVE-2025-34186

CVE-2025-34186 is a critical-severity vulnerability in Ilevia Eve X1 Server Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29645
Weakness: CWE-78
Affected product: Ilevia Eve X1 Server Firmware
Published: 2025-09-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-34186?: 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.
How severe is CVE-2025-34186?: CVE-2025-34186 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-34186 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34186?: CVE-2025-34186 affects Ilevia Eve X1 Server Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34186?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-34186 have an EU (EUVD) identifier?: Yes. CVE-2025-34186 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29645.
When was CVE-2025-34186 published?: CVE-2025-34186 was published on 2025-09-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ilevia:eve_x1_server_firmware:*:*:*:*:*:*:*:*

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