First day on Intigriti: our agent harness found and proved a remote code execution bug, paid €3,000.

CVE-2021-27146

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded admin / CUadmin credentials for an ISP.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentialsExploit, Third Party Advisory
https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentialsExploit, Third Party Advisory

Timeline

Published: Feb 10, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-271479.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded admin / admin credentials for an CVE-2021-271489.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded telecomadmin / nE7jA%5m credentia CVE-2021-271499.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded adminpldt / z6dUABtl270qRxt7a2uGT CVE-2021-271509.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded gestiontelebucaramanga / t3l3buc4 CVE-2021-271519.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded rootmet / m3tr0r00t credentials f CVE-2021-271529.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded awnfibre / fibre@dm!n credentials CVE-2021-271539.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded trueadmin / admintrue credentials CVE-2021-271549.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded admin / G0R2U1P2ag credentials fo CVE-2021-271559.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded admin / 3UJUh2VemEfUtesEchEC2d2e CVE-2021-271569.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains credentials for an ISP that equal the last part CVE-2021-271579.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded admin / 888888 credentials for an CVE-2021-271589.8An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded L1vt1m4eng / 888888 credentials f