RCE in Zenitel Tcis-3+

CVE-2025-59817

This vulnerability allows attackers to execute arbitrary commands on the underlying system. Because the web portal runs with root privileges, successful exploitation grants full control over the device, potentially compromising its availab…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-59817?
CVE-2025-59817 is a high-severity vulnerability in Zenitel Tcis-3+, classified under Command Injection. CVSS score: 8.4/10. Published 2025-09-25.
How severe is CVE-2025-59817?
High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-2025-59817 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.