CVE & CISA-KEV Catalog

CVE-2021-32672

MEDIUMEPSS 74th pctl
5.3
CVSS v3
NVD

Description

Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.

How to fix

Remediation Available
redisDebian
Fixed in:5:6.0.16-1+deb11u1CVE-2021-32672
Fixed in:5:6.0.16-1CVE-2021-32672
Fixed in:5:6.0.16-1CVE-2021-32672
Fixed in:5:6.0.16-1CVE-2021-32672
redisUbuntu
Fixed in:2:2.8.4-2ubuntu0.2+esm2USN-5221-1
Fixed in:2:3.0.6-1ubuntu0.4+esm1USN-5221-1
Fixed in:5:4.0.9-1ubuntu0.2+esm3USN-5221-1
Fixed in:5:5.0.7-2ubuntu0.1+esm1USN-5221-1
redis-serverUbuntu
Fixed in:2:2.8.4-2ubuntu0.2+esm2USN-5221-1
Fixed in:2:3.0.6-1ubuntu0.4+esm1USN-5221-1
redis-toolsUbuntu
Fixed in:2:2.8.4-2ubuntu0.2+esm2USN-5221-1
Fixed in:2:3.0.6-1ubuntu0.4+esm1USN-5221-1
Fixed in:5:4.0.9-1ubuntu0.2+esm3USN-5221-1
Fixed in:5:5.0.7-2ubuntu0.1+esm1USN-5221-1
Redis on WindowsWindows application
Affected:3.2.0 5.0.14Fixed in:5.0.14MSOpenTech
Affected:6.2.0 6.2.6Fixed in:6.2.6MSOpenTech
Affected:6.0.0 6.0.16Fixed in:6.0.16MSOpenTech

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 VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

1.70%probability of exploitation in 30 days
74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0160High7.5100%KEVFix
CVE-2025-5777High7.5100%KEV + RansomFix
CVE-2021-4034High7.895%KEVFix
CVE-2023-21769High7.592%-Fix
CVE-2023-49285High8.689%-Fix
CVE-2020-8794Critical9.889%-Fix
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Markdown

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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.