SEPTEMBER 30, 2026
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Case File

CVE-2021-31703

CRITICAL · CVSS 9.8 EPSS 1.23% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-29 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-31703
Severity
CRITICAL
CVSS
9.8
EPSS
1.23%

Original NVD Description

Frontier ichris through 5.18 allows users to upload malicious executable files that might later be downloaded and run by any client user.

Related CVEs

Other vulnerabilities affecting the same vendor(s)