CVE-2026-86474: CWE-295 Improper Certificate Validation in Fermax Electronica S.A.U. DUOX PLUS monitor firmware (VEO Wi-Fi range)
CVE-2026-86474 is a high-severity vulnerability in Fermax Electronica S.A.U.'s DUOX PLUS monitor firmware (VEO Wi-Fi range) affecting versions prior to 01.48.001. The flaw involves improper TLS certificate validation during firmware update downloads, enabling man-in-the-middle attacks on the update channel.
AI Analysis
Technical Summary
This vulnerability (CWE-295) arises because the affected VEO and VEO-XS Wi-Fi monitors do not properly validate TLS certificates when downloading firmware updates. This lack of validation allows an attacker with network access to intercept and manipulate the firmware update process via man-in-the-middle attacks. The issue affects firmware versions from initial releases up to but not including 01.48.001.
Potential Impact
An attacker exploiting this vulnerability can perform man-in-the-middle attacks on the firmware update channel, potentially delivering malicious firmware to the device. This could compromise device integrity and security. The CVSS 4.0 base score is 7.7 (high), reflecting the attack vector as adjacent network with low complexity and no user interaction required, and high impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fixed firmware version 01.48.001 or later addresses this vulnerability. Users should update affected devices to version 01.48.001 or newer to ensure proper TLS certificate validation during firmware updates. No cloud service remediation applies as this is device firmware. Patch status is confirmed by the affectedVersions field indicating fixed in 01.48.001.
CVE-2026-86474: CWE-295 Improper Certificate Validation in Fermax Electronica S.A.U. DUOX PLUS monitor firmware (VEO Wi-Fi range)
Description
CVE-2026-86474 is a high-severity vulnerability in Fermax Electronica S.A.U.'s DUOX PLUS monitor firmware (VEO Wi-Fi range) affecting versions prior to 01.48.001. The flaw involves improper TLS certificate validation during firmware update downloads, enabling man-in-the-middle attacks on the update channel.
CVSS v4.0
Score 7.7high
Affected software
Fermax Electronica S.A.U.
DUOX PLUS monitor firmware (VEO Wi-Fi range)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-295) arises because the affected VEO and VEO-XS Wi-Fi monitors do not properly validate TLS certificates when downloading firmware updates. This lack of validation allows an attacker with network access to intercept and manipulate the firmware update process via man-in-the-middle attacks. The issue affects firmware versions from initial releases up to but not including 01.48.001.
Potential Impact
An attacker exploiting this vulnerability can perform man-in-the-middle attacks on the firmware update channel, potentially delivering malicious firmware to the device. This could compromise device integrity and security. The CVSS 4.0 base score is 7.7 (high), reflecting the attack vector as adjacent network with low complexity and no user interaction required, and high impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fixed firmware version 01.48.001 or later addresses this vulnerability. Users should update affected devices to version 01.48.001 or newer to ensure proper TLS certificate validation during firmware updates. No cloud service remediation applies as this is device firmware. Patch status is confirmed by the affectedVersions field indicating fixed in 01.48.001.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- FERMAX
- Date Reserved
- 2026-09-07T15:03:37.487Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aaa6ccc55bf5e2cf558c5d0
Added to database: 09/16/2026, 10:17:48 UTC
Last enriched: 09/16/2026, 10:31:27 UTC
Last updated: 09/16/2026, 10:31:27 UTC
Views: 4
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