{"id":"CVE-2020-26133","aliases":["EUVD-2020-18763","GHSA-v8qw-9j77-3g5v"],"status":"published","title":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in...","description":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0033,"percentile":0.26356,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-732"],"published":"2020-10-28T00:00:00Z","modified":"2026-06-17T03:07:39Z","products":[{"vendor":"dual_dhcp_dns_server_project","product":"dual_dhcp_dns_server"}],"references":[{"url":"https://sourceforge.net/projects/dhcp-dns-server/","tags":["x_transferred","Product"]},{"url":"https://github.com/an0ry/advisories","tags":["x_transferred","Third Party Advisory"]},{"url":"https://github.com/OffensiveOceloot/advisories/blob/main/CVE-2020-26133.md","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26133"},{"url":"https://github.com/advisories/GHSA-v8qw-9j77-3g5v"}],"sources":{"cve":[{"id":"CVE-2020-26133","description":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.","status":"published","published":"2020-10-28T00:00:00Z","modified":"2024-08-04T15:49:07.121Z","updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2020-18763","description":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.","status":"published","published":"2020-10-28T00:00:00Z","modified":"2024-08-04T15:49:07Z","updated_at":"2026-11-03T03:07:15.778249Z"}],"ghsa":[{"id":"GHSA-v8qw-9j77-3g5v","title":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in...","description":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.","status":"published","published":"2022-05-24T17:32:33Z","modified":"2023-02-27T15:30:22Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269","CWE-732"],"updated_at":"2026-11-02T14:54:14.106206Z"}],"nvd":[{"id":"CVE-2020-26133","description":"An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.","status":"published","published":"2020-10-28T18:15:13.693Z","modified":"2026-06-17T03:07:39.027Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}