CVE-2025-64129

Zenitel TCIV-3+ Out-of-bounds Write

HIGH
7.6
CVSS Score
Published: November 26, 2025 at 05:54 PM UTC
Updated: October 18, 2026 at 08:10 PM UTC
1 product affected across 1 vendorTciv 3-plus

Using TCIV-3+ by Zenitel?

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Severity
HIGH7.6
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v ≤ 9.3.3.00

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-787

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