{"id":"CVE-2023-32148","aliases":["EUVD-2023-36416","GHSA-qjfm-3pc3-mmj2"],"status":"published","title":"D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability","description":"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.\n\nThe 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.\n. Was ZDI-CAN-19545.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.28878,"percentile":0.98168,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-303"],"published":"2024-05-03T01:56:33Z","modified":"2026-06-17T05:58:11Z","products":[{"vendor":"d-link","product":"dir-2640"},{"vendor":"d-link","product":"dir-2640-us_firmware"},{"vendor":"dlink","product":"dir-2640_firmware"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-540/","tags":["x_research-advisory","x_transferred","Third Party Advisory"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323","tags":["vendor-advisory","x_transferred","Product","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-32148"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-540"},{"url":"https://github.com/advisories/GHSA-qjfm-3pc3-mmj2"}],"sources":{"cve":[{"id":"CVE-2023-32148","title":"D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability","description":"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.\n\nThe 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.\n. Was ZDI-CAN-19545.","status":"published","published":"2024-05-03T01:56:33.125Z","modified":"2024-09-18T18:28:15.569Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:35:29.381004Z"}],"euvd":[{"id":"EUVD-2023-36416","description":"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.\n\nThe 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.\n. Was ZDI-CAN-19545.","status":"published","published":"2024-05-03T01:56:33Z","modified":"2024-09-18T18:28:15Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:28:20.565617Z"}],"ghsa":[{"id":"GHSA-qjfm-3pc3-mmj2","title":"D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability. This vulnerability allows...","description":"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.\n\nThe 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.","status":"published","published":"2024-05-03T03:30:50Z","modified":"2024-05-03T03:31:14Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:57:16.682538Z"}],"nvd":[{"id":"CVE-2023-32148","description":"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.\n\nThe 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.\n. Was ZDI-CAN-19545.","status":"published","published":"2024-05-03T02:15:18.94Z","modified":"2026-06-17T05:58:11.36Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:09:11.362739Z"}]}}