What’s Vulnerable › Vulnerabilities

CVE-2023-35724: D-Link DAP-2622 Telnet CLI Use of Hardcoded Credentials Authentication Bypass Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-798

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.

Affected products

• D-Link DAP-2622: before 1.10b03r022 — fixed in 1.10b03r022

How to fix

Upgrade to a fixed version: D-Link DAP-2622 1.10b03r022. Check the vendor advisory for mitigations.

References

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10349
• https://www.zerodayinitiative.com/advisories/ZDI-23-1230/
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10349
• https://www.zerodayinitiative.com/advisories/ZDI-23-1230/

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