Is CVE-2021-4435 in the CISA KEV catalog?

No. CVE-2021-4435 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-4435?

CVE-2021-4435 has a CVSS v3 base score of 7.7 (HIGH).

What is the EPSS score for CVE-2021-4435?

CVE-2021-4435 has an EPSS score of 0.30% (22th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-4435?

Upgrade node-yarnpkg on debian 12 to 1.22.19+~cs24.27.18-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-4435

HIGH

7.7

CVSS v3

NVD

Description

An untrusted search path vulnerability was found in Yarn. When a victim runs certain Yarn commands in a directory with attacker-controlled content, malicious commands could be executed in unexpected ways.

CWE-426

How to fix

Remediation Available

node-yarnpkgDebian

Fixed in:1.22.19+~cs24.27.18-1CVE-2021-4435

YarnWindows application

Affected:1.22.13Fixed in:1.22.13Yarn Contributors

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 ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

access.redhat.com

Issue Tracking1

bugzilla.redhat.com

Release Notes1

github.com

Related Vulnerabilities

Other CWE-426 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-0096	High	9.3	71%	-	-
CVE-2016-10009	High	7.3	37%	-	Fix
CVE-2016-0016	High	7.8	31%	-	-
CVE-2012-1854	High	7.8	21%	KEV	-
CVE-2018-12589	High	7.8	20%	-	-
CVE-2022-22047	High	7.8	19%	KEV	Fix

Embed a live status badge for CVE-2021-4435

Markdown

[![CVE-2021-4435](https://tridentstack.com/cve/badge/CVE-2021-4435.svg)](https://tridentstack.com/cve/CVE-2021-4435)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-4435"><img src="https://tridentstack.com/cve/badge/CVE-2021-4435.svg" alt="CVE-2021-4435"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.