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CVE-2021-37404

32
FAUCET Score

CVE-2021-37404 describes a critical heap buffer overflow vulnerability in the libhdfs native code of Apache Hadoop, affecting versions prior to 2.10.2, 3.2.3, and 3.3.2. This flaw, stemming from inadequate validation of user-provided file paths, carries a CVSS score of 9.8 (CRITICAL) due to its potential for remote denial of service or arbitrary code execution with low attack complexity. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.9.0, < 2.10.2CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
>= 3.0.0, <= 3.1.4CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
>= 3.2.0, < 3.2.3CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
>= 3.3.0, < 3.3.2CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.89%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0289 is in the 76th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

mavenpatch availablevia ghsa
Product: org.apache.hadoop:hadoop-commonFixed in: 3.3.2
mavenpatch availablevia ghsa
Product: org.apache.hadoop:hadoop-commonFixed in: 3.2.3
mavenpatch availablevia ghsa
Product: org.apache.hadoop:hadoop-commonFixed in: 2.10.2
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hadoop
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hive
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-presto

Vendor Advisories (2)

mavenGHSA-rmpj-7c96-mrg8critical

Apache Hadoop heap overflow before v2.10.2, v3.2.3, v3.3.2

Jun 14, 2022
redhatCVE-2021-37404Moderate

hadoop-hdfs: Heap buffer overflow in Apache Hadoop libhdfs

Jun 13, 2022

References

lists.apache.org / thread/2h56ztcj3ojc66qzf1nno88vjw9vd4wo
Mailing List
security.netapp.com / advisory/ntap-20220715-0007
Third Party Advisory