Is CVE-2021-20745 in the CISA KEV catalog?

No. CVE-2021-20745 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20745?

CVE-2021-20745 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-20745?

CVE-2021-20745 has an EPSS score of 0.96% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-20745?

Upgrade inkdrop to 5.3.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-20745

HIGH

7.8

CVSS v3

NVD

Description

Inkdrop versions prior to v5.3.1 allows an attacker to execute arbitrary OS commands on the system where it runs by loading a file or code snippet containing an invalid iframe into Inkdrop.

CWE-78OS Command Injection

How to fix

Remediation Available

inkdropNVD

Affected:< 5.3.1Fixed in:5.3.1CVE-2021-20745derived from NVD

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

0.96%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory1

jvn.jp

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	100%	KEV	Fix

Embed a live status badge for CVE-2021-20745

Markdown

[![CVE-2021-20745](https://tridentstack.com/cve/badge/CVE-2021-20745.svg)](https://tridentstack.com/cve/CVE-2021-20745)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-20745"><img src="https://tridentstack.com/cve/badge/CVE-2021-20745.svg" alt="CVE-2021-20745"></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.