CVE-2021-34204 - CVE House
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Status published Medium CVE-2021-34204

D-Link DIR-2640-US 1.01B04 is affected by Insufficiently Protected Credentials. D-Link...

Vulnerability Description

D-Link DIR-2640-US 1.01B04 is affected by Insufficiently Protected Credentials. D-Link AC2600(DIR-2640) stores the device system account password in plain text. It does not use linux user management. In addition, the passwords of all devices are the same, and they cannot be modified by normal users. An attacker can easily log in to the target router through the serial port and obtain root privileges.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

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

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

dir-2640-us firmware
Vulnerable Versions:
1.01b04

Timeline

Official Publish: June 16th, 2021
Last Modified: July 9th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.