CVE-2025-64129

Zenitel TCIV-3+ Out-of-bounds Write

State: Published
Severity: 7.0 High
Published: Nov 26, 2025
Updated: Nov 26, 2025
Reserved: Oct 27, 2025

Description

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

Scores

CVSS	Score	Vector	Source
4.0	7.0 High	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	icscert
3.1	7.6 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H	icscert

Weaknesses

CWE-787

Affected Products

Product	Versions
TCIV-3+Zenitel	9.3.3.0 and earlierAffected

References

https://wiki.zenitel.com/wiki/Downloads#Station_and_Device_Firmware_Package_.28VS-IS.29
https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-03
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-329-03.json

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