Is CVE-2021-37404 in the CISA KEV catalog?

No. CVE-2021-37404 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-37404?

CVE-2021-37404 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-37404?

CVE-2021-37404 has an EPSS score of 2.89% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-37404?

Upgrade hadoop to 3.3.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-37404

CRITICALEPSS 85th pctl

9.8

CVSS v3

NVD

Description

There is a potential heap buffer overflow in Apache Hadoop libhdfs native code. Opening a file path provided by user without validation may result in a denial of service or arbitrary code execution. Users should upgrade to Apache Hadoop 2.10.2, 3.2.3, 3.3.2 or higher.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

hadoopNVD

Affected:>= 3.3.0, < 3.3.2Fixed in:3.3.2CVE-2021-37404derived from NVD

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.89%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Third-Party Advisory1

security.netapp.com

Mailing List1

lists.apache.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.