Moxa UC-1200A up to 1.4 insufficiently protected credentials

Summaryinfo

A vulnerability marked as critical has been reported in Moxa UC-1200A up to 1.4. This impacts an unknown function. This manipulation causes insufficiently protected credentials. This vulnerability is handled as CVE-2026-0715. It is feasible to perform the attack on the physical device. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Moxa UC-1200A up to 1.4 and classified as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. The CWE definition for the vulnerability is CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Moxa Arm-based industrial computers running Moxa Industrial Linux Secure use a device-unique bootloader password provided on the device. An attacker with physical access to the device could use this information to access the bootloader menu via a serial interface.  Access to the bootloader menu does not allow full system takeover or privilege escalation. The bootloader enforces digital signature verification and only permits flashing of Moxa-signed images. As a result, an attacker cannot install malicious firmware or execute arbitrary code. The primary impact is limited to a potential temporary denial-of-service condition if a valid image is reflashed. Remote exploitation is not possible.

The weakness was released by Cyloq. It is possible to read the advisory at moxa.com. This vulnerability is known as CVE-2026-0715 since 01/08/2026. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Automation Software

Vendor

• Moxa

Name

• UC-1200A

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4

License

• commercial

Website

• Vendor: https://www.moxa.com/

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