Authenticated Remote Code Execution via the file name of an uploaded file
Priority MEDIUM 50CWE-77Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
This vulnerability allows authenticated attackers to execute arbitrary commands on the underlying system using the file name of an uploaded file.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00568 47th percentileScored 2026-11-07
Fix Fixed TCIS-3+ (Zenitel): 9.2.3.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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-2025-59818
- 2026-10-03 Alias added: GHSA-54w5-95mr-m6mw
References
More Zenitel Tcis-3 Firmware vulnerabilities
- TI-2025-39541 Authenticated Remote Code Execution in device hostname CVSS 3.1CRITICAL 10.0
- TI-2025-39542 Authenticated Remote Code Execution in the NTP-configuration CVSS 3.1HIGH 8.8
Sources
- CVE-2025-59818 · CVE Program
- CVE-2025-59818 · NVD
- FIRST EPSS
- GHSA-54w5-95mr-m6mw · 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