Is CVE-2021-3821 in the CISA KEV catalog?

No. CVE-2021-3821 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3821?

CVE-2021-3821 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-3821?

CVE-2021-3821 has an EPSS score of 0.88% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3821?

Upgrade futuresmart 5 to 5.3 or later.

CVE & CISA-KEV Catalog

CVE-2021-3821

CRITICAL

9.8

CVSS v3

NVD

Description

A potential security vulnerability has been identified for certain HP multifunction printers (MFPs). The vulnerability may lead to Denial of Service when running HP Workpath solutions on potentially affected products.

CWE-400Resource Exhaustion

How to fix

Remediation Available

futuresmart 5NVD

Affected:< 5.3Fixed in:5.3CVE-2021-3821derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.88%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Vendor Advisory1

support.hp.com

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

Embed a live status badge for CVE-2021-3821

Markdown

[![CVE-2021-3821](https://tridentstack.com/cve/badge/CVE-2021-3821.svg)](https://tridentstack.com/cve/CVE-2021-3821)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-3821"><img src="https://tridentstack.com/cve/badge/CVE-2021-3821.svg" alt="CVE-2021-3821"></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 2025-04-29.