SmmBackdoor

SMM backdoor for UEFI based platforms !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! This is legacy abandoned project, for current version of the backdoor check SMM Backdoor Next Gen project page and its documentation: https://github.com/Cr4sh/SmmBackdoorNg...

SmmExploit

SmmExploit This is a report and an exploit of CVE-2021-26943, the kernel-to-SMM local privilege escalation vulnerability in ASUS UX360CA BIOS version 303. The issue was fixed in the version 304. Issue Description Summary UX360CA BIOS version 303 has 3 vulnerable modules that allow an attacker wit...

DEBIAN-CVE-2026-81627

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

CVE-2026-81627

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

UBUNTU-CVE-2026-81627

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

EUVD-2026-82872

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

CVE-2026-81627

A flaw in QEMU 's VAPIC setup hypercall (hw/i386/vapic.c) fails to validate that the writable RAM alias stays within the option ROM window. A privileged guest on a Q35/KVM machine can position this alias over locked SMRAM , bypassing chipset D_LCK protection and injecting code into System Managem...

Linux Distros Unpatched Vulnerability : CVE-2026-81627

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A...

CVE-2024-36355

Improper input validation in the SMM handler could allow an attacker with Ring0 access to write to SMRAM and modify execution flow for S3 sleep wake up, potentially resulting in arbitrary code execution...

CVE-2024-36310

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity...

CVE-2024-36355

CVE-2024-36355 is an AMD SMM-related vulnerability: improper input validation in the System Management Mode (SMM) handler can enable a Ring0 attacker to write to SMRAM and alter execution flow during S3 wake, potentially allowing arbitrary code execution. Affected context appears in AMD EPYC/embe...

CVE-2024-36355

Improper input validation in the SMM handler could allow an attacker with Ring0 access to write to SMRAM and modify execution flow for S3 sleep wake up, potentially resulting in arbitrary code execution...

CVE-2024-36310

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity...

CVE-2024-36310

CVE-2024-36310 affects AMD processors via the System Management Mode (SMM) communications buffer. The vulnerability stems from improper input validation, enabling a privileged attacker to perform an out-of-bounds read or write to SMRAM, with potential loss of confidentiality or integrity. Public ...

AMD多款产品 安全漏洞

Both the AMD Ryzen and AMD EPYC are products of American semiconductor company AMD. The AMD Ryzen is a central processing unit CPU. The AMD EPYC is a high-performance server processor. Several AMD products have security vulnerabilities. These vulnerabilities stem from improper input validation,...

CVE-2024-36355: Out-of-bounds Write

Improper input validation in the SMM handler could allow an attacker with Ring0 access to write to SMRAM and modify execution flow for S3 sleep wake up, potentially resulting in arbitrary code execution...

CVE-2024-36310: Buffer Underwrite

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity...

PT-2026-7442

Name of the Vulnerable Software and Affected Versions versions prior to 2.3 Description A flaw exists in the System Management Mode SMM handler due to improper input validation. This could allow an attacker with Ring0 access to write to System Management RAM SMRAM and alter the execution flow...

CVE-2021-33627

An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate function of the EFISMMCOMMUNICATIONPROTOC...

CVE-2022-33984

DMA transactions which are targeted at input buffers used for the SdMmcDevice software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the SdMmcDevice driver could cause SMRAM corrupti...