What is CVE-2021-27173?

CVE-2021-27173 is a high-severity vulnerability in Fiberhome Hg6245d. CVSS score: 7.5/10. Published 2021-02-10.

How severe is CVE-2021-27173?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Fiberhome Hg6245d

CVE-2021-27173

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).

EPSS: 0.127 (95.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Fiberhome Hg6245d
Fiberhome Hg6245d_firmware
N/a — versions n/a

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27173?: CVE-2021-27173 is a high-severity vulnerability in Fiberhome Hg6245d. CVSS score: 7.5/10. Published 2021-02-10.
How severe is CVE-2021-27173?: High severity. CVSS v3 base score is 7.5 out of 10.