{"id":"CVE-2025-71317","title":"NetMan 204 contains a hard-coded backdoor account with the username and password 'eurek' that grants administrative access","summary":"NetMan 204 contains a hard-coded backdoor account with the username and password 'eurek' that grants administrative access. A remote, unauthenticated attacker can authenticate through the cgi-bin/login.cgi endpoint (for example /cgi-bin/…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-798"],"published":"2026-06-05","updated":"2026-09-30","sourceUpdated":"2026-09-30T21:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71317","references":[{"url":"https://www.exploit-db.com/exploits/52183","label":"disclosure@vulncheck.com"},{"url":"https://www.riello-ups.com/downloads/25-netman-204","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/netman-204-hard-coded-backdoor-credentials","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00432,"epssPercentile":0.3505,"ingestedAt":"2026-09-30T21:25:07.738Z","slug":"CVE-2025-71317","body":"## Overview\n\nNetMan 204 contains a hard-coded backdoor account with the username and password 'eurek' that grants administrative access. A remote, unauthenticated attacker can authenticate through the cgi-bin/login.cgi endpoint (for example /cgi-bin/login.cgi?username=eurek&password=eurek, which due to lax parameter validation can be shortened to /cgi-bin/login.cgi?username=eurek%20eurek) to obtain administrator privileges, allowing them to alter device configuration, enable the telnet/SSH services, and reset local user credentials.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}