How severe is CVE-2021-3821?

CVE-2021-3821 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3821?

CVE-2021-3821 affects Hp Futuresmart 5. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3821?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-3821 published?

CVE-2021-3821 was published on 2022-12-12 and last updated on 2026-06-17.

CVE-2021-3821

CVE-2021-3821 is a critical-severity vulnerability in Hp Futuresmart 5 with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Hp Futuresmart 5
Published: 2022-12-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-3821?: 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.
How severe is CVE-2021-3821?: CVE-2021-3821 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3821?: CVE-2021-3821 affects Hp Futuresmart 5. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3821?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-3821 published?: CVE-2021-3821 was published on 2022-12-12 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_4980799-4980823-16/hpsbpi03747

Affected products (1)

cpe:2.3:o:hp:futuresmart_5:*:*:*:*:*:*:*:*

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