CVE-2026-86326

HighCVSS 8.6

Published: 02/10/2026(UTC)Translated: 02/10/2026(UTC)NVD NIST

Summary

Risk Assessment

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.

Recommendation

Apply vendor patches that ensure proper cryptographic verification of firmware images before installation. Restrict access to the firmware update interface to trusted privileged users.

Other vulnerabilities in Protocol gateways

CVE-2026-86325Critical
A stack-based buffer overflow vulnerability exists in protocol gateways' account management interface. The vulnerability is caused by insufficient length validation of the `account_name` parameter when processing account management requests. An attacker authenticated as a read-only user to the web management interface could supply a specially crafted account name that exceeds the size of the internal stack buffer, resulting in corruption of program execution flow.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS