How severe is CVE-2021-37273?

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

Vulnerability in Chinatelecom Epon Tianyi Gateway Zxhn F450

CVE-2021-37273

A Denial of Service issue exists in China Telecom Corporation EPON Tianyi Gateway ZXHN F450(EPON ONU) 3.0. Tianyi Gateway is a hardware terminal of "Optical Modem Smart Router." Attackers can use this vulnerability to restart the device multiple times.

EPSS: 0.010 (59.2th 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:N/A:H.

Affected products

Chinatelecom Epon_tianyi_gateway_zxhn_f450
Chinatelecom Epon_tianyi_gateway_zxhn_f450_firmware — versions 3.0
N/a — versions n/a

References

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

Frequently asked questions

What is CVE-2021-37273?: CVE-2021-37273 is a high-severity vulnerability in Chinatelecom Epon Tianyi Gateway Zxhn F450. CVSS score: 7.5/10. Published 2021-09-28.
How severe is CVE-2021-37273?: High severity. CVSS v3 base score is 7.5 out of 10.