CVE-2022-36021

moderate-risk
Published 2023-03-01

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.

Do I need to act?

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60.6% chance of exploitation in next 30 days
EPSS score — higher than 39% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Redis

References (4)

Patch https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84
Vendor Advisory https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv
Patch https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84
Vendor Advisory https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv
42
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 19/34 · Moderate
Exposure 5/34 · Minimal