RCE in Zenitel Tciv-3+

CVE-2025-64128

An OS command injection vulnerability exists due to incomplete validation of user-supplied input. Validation fails to enforce sufficient formatting rules, which could permit attackers to append arbitrary data. This could allow an unauthenticated attacker to inject arbitrary commands.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-64128: held from 0.024 to 0.024.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-64128?
CVE-2025-64128 is a critical-severity vulnerability in Zenitel Tciv-3+, classified under OS Command Injection. CVSS score: 10.0/10. Published 2025-11-26.
How severe is CVE-2025-64128?
Critical severity. CVSS v3 base score is 10.0 out of 10.