CVE-2025-64090
BaseFortify
Publication date: 2026-01-09
Last updated on: 2026-02-12
Assigner: National Cyber Security Centre Netherlands (NCSC-NL)
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| zenitel | tcis-3_firmware | to 9.2.3.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-77 | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability affects Zenitel VS-IS firmware and allows authenticated attackers with administrative access to execute commands via the device's hostname. It stems from legacy web interface components that lacked sufficient input validation, enabling command execution through crafted hostname input. [1]
How can this vulnerability impact me? :
An attacker exploiting this vulnerability could execute arbitrary commands on the affected device, potentially leading to full compromise of the system. Given the CVSS score of 10.0, the impact includes complete confidentiality, integrity, and availability loss, which could disrupt device operations and expose sensitive information. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, immediately upgrade all affected Zenitel VS-IS firmware devices to version 9.3.3.1 or later (for general VS-IS firmware) or version 8.2.3.5 or later (for TCIV). No further mitigation steps are necessary after applying these firmware updates. [1]