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CVE-2025-8231

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

Published: Jul 27, 2025Updated: Apr 29, 2026 Sources: CVE List NVD BDUCWE-259
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
0.6%
Top 54.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-259CWE-798

Affected Products

DIR-890LD-Link Corp.Networking Infrastructure
DIR-890LD-LinkNetworking Infrastructure
dir-890l firmwaredlinkNetworking Infrastructure
d-link corp.commercialTWNetworking Infrastructureaka d-link corporation, d-link international
d-linkcommercialTWNetworking Infrastructure
dlinkcommercialTWNetworking Infrastructure

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Credential Access
Initial Access
View detailed technique mapping

References

https://github.com/Nicholas-wei/bug-discovery/blob/main/dlink/dir890-hardcoded/dir890-hardcoded.md
github.com
https://vuldb.com/?id.317819
vuldb.com
https://vuldb.com/?ctiid.317819
vuldb.com
and 2 more references View all →

Timeline

Published
Jul 27, 2025
Last Updated
Apr 29, 2026

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