Is CVE-2022-36021 in the CISA KEV catalog?

No. CVE-2022-36021 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-36021?

CVE-2022-36021 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2022-36021?

CVE-2022-36021 has an EPSS score of 59.71% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-36021?

Upgrade redis on debian 11 to 5:6.0.16-1+deb11u3 or later. Fixes are available for 15 affected products.

CVE & CISA-KEV Catalog

CVE-2022-36021

MEDIUMEPSS 99th pctl

5.5

CVSS v3

NVD

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.

CWE-407

How to fix

Remediation Available

redisDebian

Fixed in:5:6.0.16-1+deb11u3CVE-2022-36021

Fixed in:5:7.0.9-1CVE-2022-36021

redisRed Hat / RHEL

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.src::redis:6RHSA-2025:0595

redisRocky

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.src::redis:6RHSA-2025:0595

redis-debuginfoRocky

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

redis-debuginfoRed Hat / RHEL

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

redis-debugsourceRed Hat / RHEL

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

redis-debugsourceRocky

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

redis-develRocky

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

redis-develRed Hat / RHEL

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6RHSA-2025:0595

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.x86_64::redis:6RHSA-2025:0595

redis-docRed Hat / RHEL

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.noarch::redis:6RHSA-2025:0595

redis-docRocky

Fixed in:0:6.2.17-1.module+el8.10.0+22680+748527fd.noarch::redis:6RHSA-2025:0595

redisUbuntu

Fixed in:2:2.8.4-2ubuntu0.2+esm3USN-6531-1

Fixed in:2:3.0.6-1ubuntu0.4+esm2USN-6531-1

Fixed in:5:4.0.9-1ubuntu0.2+esm4USN-6531-1

Fixed in:5:5.0.7-2ubuntu0.1+esm2USN-6531-1

Fixed in:5:6.0.16-1ubuntu1+esm1USN-6531-1

redis-serverUbuntu

Fixed in:2:2.8.4-2ubuntu0.2+esm3USN-6531-1

Fixed in:2:3.0.6-1ubuntu0.4+esm2USN-6531-1

Fixed in:5:4.0.9-1ubuntu0.2+esm4USN-6531-1

Fixed in:5:5.0.7-2ubuntu0.1+esm2USN-6531-1

Fixed in:5:6.0.16-1ubuntu1+esm1USN-6531-1

redis-toolsUbuntu

Fixed in:2:2.8.4-2ubuntu0.2+esm3USN-6531-1

Fixed in:2:3.0.6-1ubuntu0.4+esm2USN-6531-1

Fixed in:5:4.0.9-1ubuntu0.2+esm4USN-6531-1

Fixed in:5:5.0.7-2ubuntu0.1+esm2USN-6531-1

Fixed in:5:6.0.16-1ubuntu1+esm1USN-6531-1

Redis on WindowsWindows application

Affected:6.2.0 6.2.11Fixed in:6.2.11MSOpenTech

Affected:6.0.18Fixed in:6.0.18MSOpenTech

Affected:7.0.0 7.0.9Fixed in:7.0.9MSOpenTech

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

59.71%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-407 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27223	Medium	5.2	78%	-	Fix
CVE-2021-33582	High	7.5	3.1%	-	Fix
CVE-2024-43485	High	7.5	3.1%	-	Fix
CVE-2024-43484	High	7.5	2.9%	-	Fix
CVE-2016-10396	High	7.5	2.9%	-	-
CVE-2024-43483	High	7.5	2.9%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.