Improper Certificate Validation in the Firmware Download vulnerability
Summary
| CVE | CVE-2026-86474 |
|---|---|
| State | PUBLISHED |
| Assigner | FERMAX |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-16 10:16:54 UTC |
| Updated | 2026-09-18 19:44:10 UTC |
| Description | The lack of TLS certificate validation when downloading firmware updates in VEO and VEO-XS Wi-Fi monitors, in versions prior to 01.48.001, allows an attacker to perform man-in-the-middle attacks on the update channel. |
Risk And Classification
Primary CVSS: v4.0 7.7 HIGH from 539080bd-5750-4cce-b30b-eed9a4ef6dcc
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.001090000 probability, percentile 0.013810000 (date 2026-09-21)
Problem Types: CWE-295 | CWE-295 CWE-295 Improper Certificate Validation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 539080bd-5750-4cce-b30b-eed9a4ef6dcc | Secondary | 7.7 | HIGH | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 7.7 | HIGH | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
CVSS v4.0 Breakdown
Attack Vector
AdjacentAttack Complexity
LowAttack Requirements
PresentPrivileges Required
NoneUser Interaction
NoneConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Fermax Electronica S.A.U. | DUOX PLUS Monitor Firmware VEO Wi-Fi Range | affected 01.48.001 custom | VEO-WIFI, VEO-XS-WIFI, VEO-XS-WIFI-DDA, VEO-XL-WIFI, VEO-XL-WIFI-DDA |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| fermax.com/security-advisories | 539080bd-5750-4cce-b30b-eed9a4ef6dcc | fermax.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Pedro J. Núñez-Cacho Fuentes (Tunelko) (en)
CNA: INCIBE-CERT (en)
There are currently no legacy QID mappings associated with this CVE.