CVE-2021-31702

PoC —

CVSS 3.1

7.5 high

EPSS

1%p67

Published

May 29, 2021 (May 29, 2021)

Modified

Jun 17, 2026

Description

Frontier ichris through 5.18 mishandles making a DNS request for the hostname in the HTTP Host header, as demonstrated by submitting 127.0.0.1 multiple times for DoS.

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

NVD CVE.org GitHub PoCs EPSS (1.2%)

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