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smiiiiiiiiiiiiiiii 非常に非常に非常に非常に非常に非常に長い割り込みでシステム管理モード（SMM）を悪用する。 概要 実は、SMM（すべてのx86 CPUのバックグラウンドで不可視に動作する、安全で特権的な実行環境）を、途方もなく長く実行される機械語命令だけで破壊できることが判明した。 SMMでは、すべてのコアが同時にSMM内かSMM外のどちらかにいなければならない。この前提がなければセキュリティモデルは機能しない。あるスレッドがSMMに入ると、他のすべてのスレッドもSMMに入るように強制されるからだ。...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Forcibly leave nested virtualization mode when SMM state is toggled The nested virtualization mode is forcibly exited if the user space toggles the SMM state using KVMSETVCPUEVENTS or KVMSYNCX86EVENTS. If the user space...

AZL-105275 CVE-2026-81627 affecting package qemu 10.1.0-1

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: Out-of-bounds Write

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...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared The MMU context should be reset immediately when the SMM flag of the vCPU is cleared, so that the SMM flag in the MMU context is always synchronized with th...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10587

A potential out-of-bounds write vulnerability could allow a local privileged attacker to modify power management settings in System Management Mode...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10589

Technical details (affected product, component, versions, exploitability) are not publicly available in the provided documents. Monitor for updates.

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

EUVD-2026-44981

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

EUVD-2026-44980

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

Technical details (affected products/components/root cause/fix) are not provided in the supplied documents. Monitor Lenovo advisories and CVE records for updates.

EUVD-2026-44979

A potential out-of-bounds write vulnerability could allow a local privileged attacker to modify power management settings in System Management Mode...

CVE-2026-10587

CVE-2026-10587 is described in connected documents as a potential out-of-bounds write vulnerability that could allow a local privileged attacker to modify power management settings in System Management Mode. The root cause is an out-of-bounds write; impact is indicated as high on integrity and av...