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Case File

CVE-2022-21655

HIGH · CVSS 7.5 EPSS 1.15% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-22 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

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

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

CVE
CVE-2022-21655
Severity
HIGH
CVSS
7.5
EPSS
1.15%

Original NVD Description

Envoy is an open source edge and service proxy, designed for cloud-native applications. The envoy common router will segfault if an internal redirect selects a route configured with direct response or redirect actions. This will result in a denial of service. As a workaround turn off internal redirects if direct response entries are configured on the same listener.

Related CVEs

Other vulnerabilities affecting the same vendor(s)