CVE-2023-35724: dap-2622 Hardcoded Credentials — Fix

Description

D-Link DAP-2622 Telnet CLI Use of Hardcoded Credentials Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CLI service, which listens on TCP port 23. The server program contains hard-coded credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-20050.

Is your site exposed to CVE-2023-35724?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-798 CWE-798

Affected Products

Vendor	Product	Versions
dlink	dap-2622_firmware	< 1.10b03r022
dlink	dap-2622	All

References

Advisories & Patches

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10349 https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10349

Other References

https://www.zerodayinitiative.com/advisories/ZDI-23-1230/ https://www.zerodayinitiative.com/advisories/ZDI-23-1230/

Frequently Asked Questions

What is CVE-2023-35724? +

D-Link DAP-2622 Telnet CLI Use of Hardcoded Credentials Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CLI service, which listens on TCP port 23. The server program contains hard-coded credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-20050. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2023-35724? +

CVE-2023-35724 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-35724? +

CVE-2023-35724 affects products from dlink, specifically: dap-2622, dap-2622_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-35724? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-42251

Use of hard-coded credentials in KS-SOMED allowed an unauthorized attacker access to FTP server that hosted the application's update packages. …

CVE-2026-61740

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, when LightRAG is deployed with LIGHTRAG_API_KEY set but AUTH_ACCOUNTS unset, …

CVE-2025-3426

We observed that Intellispace Portal binaries doesn’t have any protection mechanisms to prevent reverse engineering. Specifically, the app’s code is …

CVE-2025-4049

Use of hard-coded, the same among all vulnerable installations SQLite credentials vulnerability in SIGNUM-NET FARA allows to read and manipulate …

CVE-2025-4569

An insecure sensitive key storage issue was found in MyASUS. potentially allowing unauthorized actor to obtain a token that could …

CVE-2025-4570