Authenticated Remote Code Execution in the NTP-configuration
Priority MEDIUM 44CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
This vulnerability allows authenticated attackers to execute commands via the NTP-configuration of the device.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00371 31st percentileScored 2026-11-08
Fix Fixed TCIS-3+ (Zenitel): 9.2.3.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zenitel | TCIS-3+ | before 9.2.3.3 | 9.2.3.3 | Patch available | CNA |
- TCIS-3+ VendorZenitel Affected before 9.2.3.3 Fixed in 9.2.3.3 Patch available CNA
Remediation
- Fix · CNA TCIS-3+ (Zenitel) Fixed in 9.2.3.3
Timeline
- 2026-10-02 Threatist record created from CVE-2025-64091
- 2026-10-03 Alias added: GHSA-29gv-cv9c-r93w
References
Advisory 1
More Zenitel Tcis-3 Firmware vulnerabilities
- TI-2025-37257 Authenticated Remote Code Execution via the file name of an uploaded file CVSS 3.1CRITICAL 10.0
- TI-2025-39541 Authenticated Remote Code Execution in device hostname CVSS 3.1CRITICAL 10.0
Sources
- CVE-2025-64091 · CVE Program
- CVE-2025-64091 · NVD
- FIRST EPSS
- GHSA-29gv-cv9c-r93w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences