Is CVE-2021-38294 in the CISA KEV catalog?

No. CVE-2021-38294 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38294?

CVE-2021-38294 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-38294?

CVE-2021-38294 has an EPSS score of 84.49% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38294?

Upgrade storm to 2.2.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-38294

CRITICALEPSS 100th pctl

9.8

CVSS v3

NVD

Description

A Command Injection vulnerability exists in the getTopologyHistory service of the Apache Storm 2.x prior to 2.2.1 and Apache Storm 1.x prior to 1.2.4. A specially crafted thrift request to the Nimbus server allows Remote Code Execution (RCE) prior to authentication.

CWE-74Injection CWE-78OS Command Injection

How to fix

Remediation Available

stormNVD

Affected:>= 2.2.0, < 2.2.1Fixed in:2.2.1CVE-2021-38294derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

84.49%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Exploit1

packetstormsecurity.com

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

seclists.org

Related Vulnerabilities

Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2251	Critical	9.8	100%	KEV	Fix
CVE-2023-22527	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-2725	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2022-35914	Critical	9.8	100%	KEV	-
CVE-2019-17558	High	7.5	99%	KEV	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.