CVE-2021-27173

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered on FiberHome HG6245D devices through RP2613. There is a telnet?enable=0&key=calculated(BR0_MAC) backdoor API, without authentication, provided by the HTTP server. This will remove firewall rules and allow an attacker to reach the telnet server (used for the CLI).

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected software

No affected versions have been published.

Timeline

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

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CVE-2021-27173: High severity, CVSS 7.5 | Vulnix