CVE-2025-64129: Zenitel Tciv-3+

High severity, CVSS 7.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Zenitel TCIV-3+ is vulnerable to an out-of-bounds write vulnerability, which could allow a remote attacker to crash the device.

Affected products

• Zenitel Tciv-3+: up to and including 9.3.3.0

Published 2025-11-26. Last modified 2026-06-17.