CVE-2021-3942

Signals

NVD · CVE-2026-64604 · In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8NVD · CVE-2026-64603 · In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-hid: Protect ACPI notify handler against recursion Since commit e2ffcda1NVD · CVE-2026-64602 · In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung ChuNVD · CVE-2026-64601 · In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on eachCISA KEV · CVE-2026-63077 · 9.8 · JetBrains TeamCity Deserialization of Untrusted Data Vulnerability · Added 2026-08-05 · Due 2026-08-08CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07NVD · CVE-2026-64604 · In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8NVD · CVE-2026-64603 · In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-hid: Protect ACPI notify handler against recursion Since commit e2ffcda1NVD · CVE-2026-64602 · In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung ChuNVD · CVE-2026-64601 · In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on eachCISA KEV · CVE-2026-63077 · 9.8 · JetBrains TeamCity Deserialization of Untrusted Data Vulnerability · Added 2026-08-05 · Due 2026-08-08CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07

CVE Database · CVE-2021-3942

CVE-2021-3942

· CRITICALModified

CVSS v3.1

9.8

EPSS

1.39%

Published

Dec 12, 2022

Modified

Apr 25, 2025

Public PoC / Exploit (1)

All weaponized →

TrickestTrickest PoC index

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

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 Vector

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

Weaknesses (CWE)

CWE-119CWE-119

Affected Products (5821)

hp · color_laserjet_cm4540_mfp_cc419a_firmware (up to 3.9.9)vulnerable

hp · color_laserjet_cm4540_mfp_cc419a

hp · color_laserjet_cm4540_mfp_cc420a_firmware (up to 3.9.9)vulnerable

hp · color_laserjet_cm4540_mfp_cc420a

hp · color_laserjet_cm4540_mfp_cc421a_firmware (up to 3.9.9)vulnerable

hp · color_laserjet_cm4540_mfp_cc421a

hp · color_laserjet_cm4540_mfp_cc421a_firmware (up to 3.9.9)vulnerable

hp · color_laserjet_cm4540_mfp_cc421a

hp · color_laserjet_cm4540_mfp_cc421a_firmware (up to 3.9.9)vulnerable

hp · color_laserjet_cm4540_mfp_cc421a

References (2)

https://support.hp.com/us-en/document/ish_5948778-5949142-16/hpsbpi03780

Vendor Advisory

https://support.hp.com/us-en/document/ish_5948778-5949142-16/hpsbpi03780

Vendor Advisory

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