Is CVE-2021-22918 in the CISA KEV catalog?

No. CVE-2021-22918 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22918?

CVE-2021-22918 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-22918?

CVE-2021-22918 has an EPSS score of 23.13% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22918?

Upgrade libuv1 on debian 11 to 1.40.0-2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-22918

MEDIUMEPSS 98th pctl

5.3

CVSS v3

NVD

Description

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().

CWE-125Out-of-bounds Read

How to fix

Remediation Available

libuv1Debian

Fixed in:1.40.0-2CVE-2021-22918

libuv1Ubuntu

Fixed in:1.34.2-1ubuntu1.3USN-5007-1

Node.jsWindows application

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

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

Node.js (LTS)Windows application

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

Affected:12.0.0 12.22.2Fixed in:12.22.2Node.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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

23.13%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Patch2

Exploit1

hackerone.com

Third-Party Advisory1

security.netapp.com

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix
CVE-2023-49285	High	8.6	89%	-	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.