Is CVE-2021-41088 in the CISA KEV catalog?

No. CVE-2021-41088 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41088?

CVE-2021-41088 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2021-41088?

CVE-2021-41088 has an EPSS score of 0.52% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41088?

Upgrade elvish on debian 11 to 0.14.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-41088

HIGH

8.0

CVSS v3

NVD

Description

Elvish is a programming language and interactive shell, combined into one package. In versions prior to 0.14.0 Elvish's web UI backend (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI. The backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost. All Elvish releases from 0.14.0 onward no longer include the the web UI, although it is still possible for the user to build a version from source that includes the web UI. The issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version).

CWE-668 CWE-346

How to fix

Remediation Available

elvishDebian

Fixed in:0.14.0-1CVE-2021-41088

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 ComplexityHigh

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.52%probability of exploitation in 30 days

40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-668 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39952	Critical	9.8	100%	-	Fix
CVE-2017-16597	Critical	9.8	57%	-	-
CVE-2017-16603	High	8.8	54%	-	-
CVE-2024-25153	Critical	9.8	42%	-	Fix
CVE-2017-0215	Medium	5.3	36%	-	-
CVE-2022-25236	Critical	9.8	34%	-	Fix

Embed a live status badge for CVE-2021-41088

Markdown

[![CVE-2021-41088](https://tridentstack.com/cve/badge/CVE-2021-41088.svg)](https://tridentstack.com/cve/CVE-2021-41088)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-41088"><img src="https://tridentstack.com/cve/badge/CVE-2021-41088.svg" alt="CVE-2021-41088"></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.