Quick answers
- Is CVE-2025-34186 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-34186 being exploited in the wild.
- How severe is CVE-2025-34186?
- Critical severity, with a CVSS score of 9.8, published 16 September 2025.
- Which products and versions are affected?
- Ilevia EVE X5 Server ≤ 4.7.18.0.eden; Ilevia Eve X1 Server ≤ 4.7.18.0.eden.
- Is there a fix for CVE-2025-34186?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-34186 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2025-34186?
- Check whether you run Ilevia EVE X5 Server, Ilevia Eve X1 Server or Ilevia Eve X1 Server Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists within the authentication mechanism of the Ilevia EVE X1/X5 Server. The application passes unsanitized user input directly to a system() call to perform authentication tasks, leading to OS command injection (CWE-78). Furthermore, the binary logic incorrectly interprets any non-zero exit code from the system() call as a successful authentication event. A remote, unauthenticated attacker can exploit this by injecting shell metacharacters that cause the command to fail or return a specific exit status, thereby bypassing the authentication check entirely. This allows for full administrative access to the server's management interface and underlying building automation protocols.
Affected products
- Ilevia EVE X1 Server ≤ 4.7.18.0.eden
- Ilevia EVE X5 Server ≤ 4.7.18.0.eden
Timeline
- 2025-09-16: advisory: Initial disclosure by VulnCheck and Zero Science Lab
- 2025-09-16: disclosed