CVE-2025-64129

Zenitel TCIV-3+ Out-of-bounds Write

Published Nov 26, 2025 CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Description
Zenitel TCIV-3+ is vulnerable to an out-of-bounds write
vulnerability, which could allow a remote attacker to crash the device.

Remediation

Vendor Solution

Zenitel recommends users to upgrade to Version 9.3.3.0 or later https://wiki.zenitel.com/wiki/Downloads#Station_and_Device_Firmware_Package_.28VS-IS.29 .

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Zenitel
Zenitel tciv-3+
Vendors & Products Zenitel
Zenitel tciv-3+
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Zenitel TCIV-3+ is vulnerable to an out-of-bounds write vulnerability, which could allow a remote attacker to crash the device.
Title Zenitel TCIV-3+ Out-of-bounds Write
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Nov 26, 2025, 6:33 PM
Reserved
Oct 27, 2025, 6:03 PM
Status
Deferred
Published
Nov 26, 2025, 6:15 PM
Modified
Oct 18, 2026, 8:10 PM