CVE-2021-27156

critical

Description

An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains credentials for an ISP that equal the last part of the MAC address of the br0 interface.

References

https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials

Details

Source: Mitre, NVD

Published: 2021-02-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.14538