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CVE-2016-6811

24
FAUCET Score

CVE-2016-6811 is a critical privilege escalation vulnerability affecting Apache Hadoop 2.x before version 2.7.4. An authenticated user with yarn privileges can execute arbitrary commands as the root user. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk of complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or significant community discussion, its high severity and ease of exploitation warrant immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.7.3CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.62%
Probability of exploitation in next 30 days
EPSS Percentile
83.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0262 is in the 82nd percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.hadoop:hadoop-commonFixed in: 2.7.4
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: hadoop

Vendor Advisories (2)

mavenGHSA-mf7c-35mq-75pjhigh

Insecure Inherited Permissions in Apache Hadoop

May 14, 2022
redhatCVE-2016-6811Important

hadoop: privilege escalation to root

May 1, 2018

References

lists.apache.org / thread.html/9ba3c12bbdfd5b2cae60909e48f92608e00c8d99196390b8cfeca307%40%3Cgeneral.hadoop.apache.org%3E