Is CVE-2021-22921 in the CISA KEV catalog?

No. CVE-2021-22921 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22921?

CVE-2021-22921 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-22921?

CVE-2021-22921 has an EPSS score of 7.41% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22921?

Upgrade Node.js to 12.22.2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-22921

HIGHEPSS 94th pctl

7.8

CVSS v3

NVD

Description

Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local privilege escalation attacks under certain conditions on Windows platforms. More specifically, improper configuration of permissions in the installation directory allows an attacker to perform two different escalation attacks: PATH and DLL hijacking.

CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

Node.jsWindows application

Affected:12.0.0 12.22.2Fixed in:12.22.2Node.js Foundation

Affected:16.0.0 16.4.1Fixed in:16.4.1Node.js Foundation

Affected:14.0.0 14.17.2Fixed in:14.17.2Node.js Foundation

Node.js (LTS)Windows application

Affected:12.0.0 12.22.2Fixed in:12.22.2Node.js Foundation

Affected:14.0.0 14.17.2Fixed in:14.17.2Node.js Foundation

Affected:16.0.0 16.4.1Fixed in:16.4.1Node.js Foundation

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.41%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch2

Exploit1

hackerone.com

Third-Party Advisory1

security.netapp.com

Related Vulnerabilities

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-3923	Critical	9.8	89%	-	Fix
CVE-2018-15379	Critical	9.8	86%	-	-
CVE-2018-1000207	High	7.2	64%	-	-
CVE-2023-32986	High	8.8	61%	-	-
CVE-2021-44521	Critical	9.1	55%	-	Fix
CVE-2018-13374	Medium	4.3	38%	KEV + Ransom	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.