CVE-2023-32148

D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web management interface, which listens on TCP port 80 by default. A crafted XML element in the login request can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-19545.

• CWE-303

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323Product, Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-23-540/Third Party Advisory
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323Product, Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-23-540/Third Party Advisory

Published

May 3, 2024

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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• CVE-2023-32142D-Link DAP-1360 webproc var:page Stack-based Buffer Overflow…8.8
• CVE-2023-32143D-Link DAP-1360 webupg UPGCGI_CheckAuth Numeric Truncation R…8.8
• CVE-2023-32144D-Link DAP-1360 webproc COMM_MakeCustomMsg Stack-based Buffe…8.8
• CVE-2023-32145D-Link DAP-1360 Hardcoded Credentials Authentication Bypass …8.8
• CVE-2023-32146D-Link DAP-1360 Multiple Parameters Stack-Based Buffer Overf…8.8
• CVE-2023-32147D-Link DIR-2640 LocalIPAddress Command Injection Remote Code…6.8
• CVE-2023-32149D-Link DIR-2640 prog.cgi Request Handling Stack-based Buffer…8.8
• CVE-2023-3215Use after free in WebRTC in Google Chrome prior to 114.0.573…8.8
• CVE-2023-32150D-Link DIR-2640 PrefixLen Command Injection Remote Code Exec…6.8
• CVE-2023-32151D-Link DIR-2640 DestNetwork Command Injection Remote Code Ex…6.8
• CVE-2023-32152D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vul…6.5
• CVE-2023-32153D-Link DIR-2640 EmailFrom Command Injection Remote Code Exec…6.8