Is CVE-2021-41038 in the CISA KEV catalog?

No. CVE-2021-41038 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41038?

CVE-2021-41038 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-41038?

CVE-2021-41038 has an EPSS score of 0.71% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41038?

Upgrade theia to 1.18.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-41038

MEDIUM

6.1

CVSS v3

NVD

Description

In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage().

CWE-940

How to fix

Remediation Available

theiaNVD

Affected:< 1.18.0Fixed in:1.18.0CVE-2021-41038derived 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 InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.71%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Patch1

github.com

Exploit1

bugs.eclipse.org

Related Vulnerabilities

Other CWE-940 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-61932	Critical	9.8	2.6%	KEV	-
CVE-2024-32388	Medium	5.3	1.5%	-	Fix
CVE-2023-3663	High	8.8	1.0%	-	Fix
CVE-2023-48387	High	8.8	1.0%	-	-
CVE-2025-23018	Medium	5.4	1.0%	-	-
CVE-2025-23019	Medium	5.4	0.9%	-	-

Embed a live status badge for CVE-2021-41038

Markdown

[![CVE-2021-41038](https://tridentstack.com/cve/badge/CVE-2021-41038.svg)](https://tridentstack.com/cve/CVE-2021-41038)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-41038"><img src="https://tridentstack.com/cve/badge/CVE-2021-41038.svg" alt="CVE-2021-41038"></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.

See how it works Start freeThis CVE lookup is free and always will be.

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.