VULNERABILITY INTELLIGENCE

CVE-2021-31702

CVSS score7.5 HIGH
EPSS probability1.24%
CISA KEVNot currently listed
Published2021-05-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references