CVE-2026-86585 Improper Verification of the Firmware Signature vulnerability

High 7.7 Published Updated

Attackers can install unauthorized firmware on VEO Wi-Fi monitors by bypassing signature verification, leading to potential code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-86585?

CVE-2026-86585 is a high-severity vulnerability in Fermax Electronica S.A.U. DUOX PLUS monitor firmware (VEO Wi-Fi range), published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The lack of signature verification of firmware update packages in VEO and VEO-XS Wi-Fi monitors, in versions prior to 01.48.001, allows an attacker who controls the delivery of an update to install unauthorised firmware.

Weakness: CWE-347

Which versions are affected by CVE-2026-86585?

How do I fix CVE-2026-86585?

No fix has been published for CVE-2026-86585 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-86585 being exploited?

There is no known exploitation of CVE-2026-86585 in the wild and no public exploit code.

Sources

Also known as GHSA-w8g5-67fq-vjx9.

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