CVE-2025-8231: D-Link DIR-890L UART Port rgbin hard-coded credentials

Published Jul 27, 2025
·
Updated

A vulnerability, which was classified as critical, has been found in D-Link DIR-890L up to 111b04. This issue affects some unknown processing of the file rgbin of the component UART Port. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the physical device. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected Software

3 affected components
D-Link DIR-890L<=111b04
All of the following
Dlink Dir-890l Firmware<=1.11b04
Dlink Dir-890l

Event History

Jul 27, 2025
CVE Published
via MITRE·01:32 PM
Data Sourced
via MITRE·01:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Jun 19, 58473
Event
via NVD·08:31 AM

Frequently Asked Questions

1

What is the severity of CVE-2025-8231?

CVE-2025-8231 is classified as a critical vulnerability.

2

How do I fix CVE-2025-8231?

To fix CVE-2025-8231, update your D-Link DIR-890L device to the latest firmware version beyond 111b04.

3

What does CVE-2025-8231 affect?

CVE-2025-8231 affects the UART Port component in the D-Link DIR-890L router.

4

What are the consequences of CVE-2025-8231?

Exploitation of CVE-2025-8231 can lead to the use of hard-coded credentials, compromising device security.

5

Can CVE-2025-8231 be exploited remotely?

Yes, CVE-2025-8231 can be exploited remotely, allowing unauthorized access to the device.

Contact

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