CVE-2021-3942

criticalpriority · track · 40EPSS 0.016 · 75 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.56% (75th) EPSS

CVSS 9.8 · critical

Is it mine?

2,784 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Certain HP Print products and Digital Sending products may be vulnerable to potential remote code execution and buffer overflow with use of Link-Local Multicast Name Resolution or LLMNR.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

affected products (2,784)

Products and version ranges known to be affected.

HP Inc. HP Print products and Digital Sending products≤ See HP Security Bulletin reference for affected versions.enisa_euvdEU
hp color laserjet cm4540 mfp cc419a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm4540_mfp_cc419a_firmware:*:*:*:*:*:*:*:*
hp color laserjet cm4540 mfp cc420a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm4540_mfp_cc420a_firmware:*:*:*:*:*:*:*:*
hp color laserjet cm4540 mfp cc421a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm4540_mfp_cc421a_firmware:*:*:*:*:*:*:*:*
hp color laserjet cm5525 mfp ce707a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm5525_mfp_ce707a_firmware:*:*:*:*:*:*:*:*
hp color laserjet cm5525 mfp ce708a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm5525_mfp_ce708a_firmware:*:*:*:*:*:*:*:*
hp color laserjet cm5525 mfp ce709a firmware3.0 → 3.9.9nvdUScpe:2.3:o:hp:color_laserjet_cm5525_mfp_ce709a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m577 b5l46a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m577_b5l46a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m577 b5l47a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m577_b5l47a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m577 b5l48a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m577_b5l48a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m577 b5l54a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m577_b5l54a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m680 ca251a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m680_ca251a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m680 cz248a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m680_cz248a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m680 cz249a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m680_cz249a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m680 cz250a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m680_cz250a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m681 j8a10a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m681_j8a10a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m681 j8a11a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m681_j8a11a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m681 j8a12a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m681_j8a12a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m681 j8a13a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m681_j8a13a_firmware:*:*:*:*:*:*:*:*
hp color laserjet enterprise flow mfp m682 j8a16a firmwareall versionsnvdUScpe:2.3:o:hp:color_laserjet_enterprise_flow_mfp_m682_j8a16a_firmware:*:*:*:*:*:*:*:*

showing 20 of 2,784

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2022-12-12modified 2026-06-17

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+21039 more

references (4)

External citations — patches, advisories, analysis.

scry

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