CVE-2025-8231 - CVE House

Back to Database

Status published High CVE-2025-8231

D-Link DIR-890L UART Port rgbin hard-coded credentials

7 CVSS

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-8231

Check My Exposure

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

nich0las (VulDB User)

References

More from D-Link

View All →

D-Link DI-8400 yyxz.asp yyxz_dlink_asp stack-based overflow

D-Link DI-7400G+ mng_platform.asp sub_478D28 command injection

D-Link DIR-852 SOAP Service soap.cgi soapcgi_main os command injection

D-Link DI-500WF jhttpd version_upgrade.asp os command injection

D-Link DIR-816L soap.cgi soapcgi_main os command injection

Affected Vendor

D-Link

View all reports →

Affected Software

DIR-890L

Vulnerable Versions:

111b04

Timeline

Official Publish: July 27th, 2025

Last Modified: July 28th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Weaknesses (CWE)

CWE-798 CWE-259

MITRE ATT&CK TTPs

T1552 Unsecured Credentials

Credential Access

T1078 Valid Accounts

T1021 Remote Services

Lateral Movement

T1190 Exploit Public-Facing Application

T1098 Account Manipulation

Privilege Escalation

T1005 Data from Local System