CVSS 4.0
8.6 highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/S:PCVE-2026-95378 Path traversal in Zenitel turbineweb certificate upload allows arbitrary file write as root
High (8.6) in zenitel.
On this page
Path traversal in the certificate upload endpoint (/api/certificate/upload) of the turbineweb web interface in Zenitel VSFF6, VSFF8, VSFF8MP, VSFF8MN, and VSFT devices with software versions from 10.0.3.0 before 10.1.3.0 allows authenticated administrators to write arbitrary files as root via a crafted filename parameter in a multipart upload request when the type field is set to any value other than https_certificate. In that case, both path validation and certificate content validation are skipped.
This can be escalated to arbitrary code execution as root, for example by overwriting startup scripts or planting SSH keys.
Severity
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWEs
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory (Path traversal)
CWE-434 Unrestricted Upload of File with Dangerous Type - OWASP Top 10
- A01:2025 Broken Access Control, A06:2025 Insecure Design
- Published
- Modified
- Assigned by
- Zenitel (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Zenitel VSFF6 | from 10.0.3.0 before 10.1.3.0 |
| Zenitel VSFF8 | from 10.0.3.0 before 10.1.3.0 |
| Zenitel VSFF8MP | from 10.0.3.0 before 10.1.3.0 |
| Zenitel VSFF8MN | from 10.0.3.0 before 10.1.3.0 |
| Zenitel VSFT | from 10.0.3.0 before 10.1.3.0 |
Attack patterns (CAPEC)
- CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs Likelihood: High · Severity: High
- CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic Likelihood: High · Severity: High
- CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
- CAPEC-78 Using Escaped Slashes in Alternate Encoding Likelihood: High · Severity: High
- CAPEC-79 Using Slashes in Alternate Encoding Likelihood: High · Severity: High
- CAPEC-126 Path Traversal Likelihood: High · Severity: Very High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.