# CVE-2022-36021

## Summary

- **CVE ID:** CVE-2022-36021
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-407
- **Published:** Mar 1, 2023
- **Last Modified:** Mar 13, 2026

## Description

Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.

## Affected Products

- redis — redis (< 6.0.18)
- redis — redis (>= 6.2.0, < 6.2.11)
- redis — redis (>= 7.0.0, < 7.0.9)

## References

- [CNA](https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv)
- [CNA](https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 56.84%
- **EPSS Percentile:** 98.1

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._