What’s Vulnerable › Vulnerabilities
CVE-2021-31702
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-05-29 · updated 2026-06-17
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.
Affected products
- Frontiersoftware Ichris: through 5.18
References
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