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CVE-2021-21296: fleetdm fleet Uncontrolled Resource Consumption

CVSS: 4.0v2.0MediumAnalyzed
Published 10-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21296 is a medium (CVSS 4.0) Uncontrolled Resource Consumption vulnerability in fleetdm fleet. EPSS estimates a 1.94% chance of exploitation in the next 30 days, higher than 79.8% of scored vulnerabilities.

Overall risk
16/100
0100
Low · default modelHow is this calculated?
CVSS score
4.0/10
010
Medium · v2.0 (NVD)
EPSS score
1.94%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-02-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Fleet is an open source osquery manager. In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service. This is possible only while a live query is currently ongoing. We believe the impact of this vulnerability to be low given the requirement that the actor has a valid node key. There is no information disclosure, privilege escalation, or code execution. The issue is fixed in Fleet 3.7.0.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.94%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.94% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.94%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fleetdm1 product

1 vendor · 1 product

References

3 links