CVE-2021-3786

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-2021-3786

CVE-2021-3786

· MEDIUMModified

CVSS v3.1

4.4

EPSS

0.23%

Published

Nov 12, 2021

Modified

Nov 21, 2024

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

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

Description

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

CVSS Vector

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

Weaknesses (CWE)

CWE-20

Affected Products (272)

lenovo · thinkpad_x380_yoga_firmware (up to 2020-10-31)vulnerable

lenovo · thinkpad_x380_yoga

lenovo · thinkpad_x1_fold_gen_1_firmware (up to 2021-10-29)vulnerable

lenovo · thinkpad_x1_fold_gen_1

lenovo · thinkpad_yoga_260_firmware (up to 2021-10-25)vulnerable

lenovo · thinkpad_yoga_260

lenovo · thinkpad_yoga_11e_3rd_gen_firmware (up to 2021-10-31)vulnerable

lenovo · thinkpad_yoga_11e_3rd_gen

lenovo · thinkpad_yoga_15_firmware (up to n19et66w)vulnerable

lenovo · thinkpad_yoga_15

References (2)

https://support.lenovo.com/us/en/product_security/LEN-67440

PatchVendor Advisory

https://support.lenovo.com/us/en/product_security/LEN-67440

PatchVendor Advisory

KEV Catalog EPSS Scores Vendors All CVEs