{"id":"CVE-2020-9544","aliases":["EUVD-2020-30349","GHSA-5qgx-q55q-4jm7"],"status":"published","title":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface...","description":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01356,"percentile":0.71875,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-306"],"published":"2020-03-05T14:57:01Z","modified":"2026-06-17T03:28:07Z","products":[{"vendor":"d-link","product":"dsl-2640b_firmware"}],"references":[{"url":"https://www.dlink.com/en/security-bulletin","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://ktln2.org/2020/03/05/cve-2020-9544/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9544"},{"url":"https://github.com/advisories/GHSA-5qgx-q55q-4jm7"}],"sources":{"cve":[{"id":"CVE-2020-9544","description":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.","status":"published","published":"2020-03-05T14:57:01Z","modified":"2024-08-04T10:34:39.549Z","updated_at":"2026-11-02T14:35:49.209579Z"}],"euvd":[{"id":"EUVD-2020-30349","description":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.","status":"published","published":"2020-03-05T14:57:01Z","modified":"2024-08-04T10:34:39Z","updated_at":"2026-11-03T03:07:53.493042Z"}],"ghsa":[{"id":"GHSA-5qgx-q55q-4jm7","title":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface...","description":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.","status":"published","published":"2022-05-24T17:10:18Z","modified":"2023-01-29T05:01:53Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:44:56.341286Z"}],"nvd":[{"id":"CVE-2020-9544","description":"An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.","status":"published","published":"2020-03-05T15:15:12.473Z","modified":"2026-06-17T03:28:07.327Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:05:54.796125Z"}]}}