CVE-2026-86326

published 2026-10-02

CVE-2026-86326: An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic…

Priority P3 55 high 8.6 CVSS 4.0

AV N AC L AT N PR H 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

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provide a specially crafted or modified firmware image, causing it to be installed on the device. Successful exploitation could allow the attacker to execute unauthorized code, compromise the integrity and availability of the device, and persist malicious modifications across subsequent firmware updates.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
moxa	mgate_mb3170_series	—	—
moxa	mgate_mb3270_series	—	—

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CWE-347