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CVE-2025-8231

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

MEDIUM
6.8
CVSS Score
Published: July 27, 2025 at 01:32 PM UTC
Updated: June 17, 2026 at 10:06 AM UTC
2 products affected across 1 vendorDir 890L FirmwareDir-890L

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dir 890L Firmware· D-Link
95%
v ≤ 1.11b04111b04
dlink-dir-890l (same device)
Dir-890L· D-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Exploit
Source: [email protected]
https://github.com/Nicholas-wei/bug-discovery/blob/main/dlink/dir890-hardcoded/dir890-hardcoded.md
SignaturePermissions RequiredVDB Entry
Source: [email protected]
https://vuldb.com/?ctiid.317819
VDB EntryThird Party Advisory
Source: [email protected]
https://vuldb.com/?id.317819
Third Party AdvisoryVDB Entry
Source: [email protected]
https://vuldb.com/?submit.622337
Product
Source: [email protected]
https://www.dlink.com/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-259CWE-798

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