CVE-2021-3821

CRITICALNVD 9.89.8—

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 55.7%
KEV: Not listed

Published

December 12, 2022

Last Modified

April 29, 2025

References (2)

hp-security-alert@hphttps://support.hp.com/us-en/document/ish_4980799-4980823-16/hpsbpi03747
af854a3a-2127-422b-91ae-364da2661108https://support.hp.com/us-en/document/ish_4980799-4980823-16/hpsbpi03747

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2021-3821?

CVE-2021-3821 is a critical vulnerability published on December 12, 2022. 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.

When was CVE-2021-3821 disclosed?

CVE-2021-3821 was first published in the National Vulnerability Database on December 12, 2022, with the most recent update on April 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-3821 actively exploited?

CVE-2021-3821 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 55.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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

How do I remediate CVE-2021-3821?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3821, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-3821

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-3821?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)