CVE-2026-95378

Path traversal in Zenitel turbineweb certificate upload allows arbitrary file write as root

publishedCWE-22CWE-434

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.

Technical severity8.6 highCVSS 4.0 · CNA: Zenitel

Published2026-11-13Source updated 2026-11-13

Collected2026-11-132 attributed sources

Fixes and workarounds

Fix

Affected devices should upgrade to version 10.1.3.0 (and newer).

Source: CNA: Zenitel

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
VSFF6 Zenitel `turbineweb` Platforms: Linux, ARM, 32 bit	≥ 10.0.3.0; < 10.1.3.0 (affected, custom) Other versions: unaffected	CNA: Zenitel
VSFF8 Zenitel `turbineweb` Platforms: Linux, ARM, 64 bit	≥ 10.0.3.0; < 10.1.3.0 (affected, custom) Other versions: unaffected	CNA: Zenitel
VSFF8MP Zenitel `turbineweb` Platforms: Linux, ARM, 64 bit	≥ 10.0.3.0; < 10.1.3.0 (affected, custom) Other versions: unaffected	CNA: Zenitel
VSFF8MN Zenitel `turbineweb` Platforms: Linux, ARM, 64 bit	≥ 10.0.3.0; < 10.1.3.0 (affected, custom) Other versions: unaffected	CNA: Zenitel
VSFT Zenitel `turbineweb` Platforms: Linux, ARM, 32 bit	≥ 10.0.3.0; < 10.1.3.0 (affected, custom) Other versions: unaffected	CNA: Zenitel

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
4.0 / 8.6 high	`CVSS: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:P`	CNA: Zenitel
4.0 / 8.6 high	`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X`	NVD: cf9c5165-6fe5-4ec0-b5f1-404f1df30a4e

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://www.zenitel.com/sites/default/files/2026-11/A100K12404-Zenitel-Security-Advisory.pdfCNA: Zenitel
https://www.zenitel.com/sites/default/files/2026-11/A100K12404-Zenitel-Security-Advisory.pdfcf9c5165-6fe5-4ec0-b5f1-404f1df30a4e

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