Zenitel TCIS-3+ prior 9.2.3.3 NTP Configuration os command injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.6 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as critical has been found in Zenitel TCIS-3+. This vulnerability affects unknown code of the component NTP Configuration Handler. The manipulation results in Remote Privilege Escalation. This vulnerability is identified as CVE-2025-64091. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.
Details
A vulnerability, which was classified as critical, was found in Zenitel TCIS-3+. Affected is an unknown part of the component NTP Configuration Handler. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
This vulnerability allows authenticated attackers to execute commands via the NTP-configuration of the device.
The advisory is available at zenitel.com. This vulnerability is traded as CVE-2025-64091 since 10/27/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.
Upgrading to version 9.2.3.3 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.7VulDB Meta Temp Score: 8.6
VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔒
CNA Base Score: 8.6
CNA Vector (NCSC-NL): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: TCIS-3+ 9.2.3.3
Timeline
10/27/2025 CVE reserved01/09/2026 Advisory disclosed
01/09/2026 VulDB entry created
02/12/2026 VulDB entry last update
Sources
Advisory: zenitel.comStatus: Confirmed
CVE: CVE-2025-64091 (🔒)
GCVE (CVE): GCVE-0-2025-64091
GCVE (VulDB): GCVE-100-340266
Entry
Created: 01/09/2026 12:29Updated: 02/12/2026 19:30
Changes: 01/09/2026 12:29 (62), 01/10/2026 00:29 (2), 02/12/2026 19:30 (10)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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