igvm

igvm This project is the home of the Independent Guest Virtual Machine IGVM file format. The format specification can be found in the igvmdefs crate, with a Rust implementation of the binary format in the igvm crate. The IGVM file format is designed to encapsulate all information required to laun...

cve-2023-46813-poc

CVE-2023-46813 PoC 1. Apply the patches in the host-patches folder to the Linux host and QEMU. 2. Start an SEV-SNP VM. 3. Run the code in this repo and wait for the message "waiting for the hypervisor to change memory to MMIO". 4. Spam the attack command in QEMU several times. 5. Once the exploit...

cve-2023-31346-poc

Firmware Memory Leak The code here aims to demonstrate the memory leaks in guest messages headers and the CPUID request guest message. Prerequisites Install rustup. Install a Linux kernel with SEV-SNP host support. I used a kernel with my a few of own patches...

cve-2024-21978-poc

SEV Firmware Vulnerability This repo contains an exploit for a vulnerability in the SEV firmware. The exploit allows decrypting arbitrary memory of a running SEV-SNP guest. Tested on version 1.55.16 latest as of the time of writing. Root Cause The nvpaddr field of the SEVINITEX command can be use...

cve-2024-21980-poc

SEV Firmware Vulnerability This repo contains an exploit for a vulnerability in the SEV firmware. The exploit allows decrypting arbitrary memory of an SEV-SNP guest after it's been decommissioned. Tested on version 1.55.16 latest as of time of writing. Root Cause The SEV firmware has a table call...

cve-2023-31355-poc

SEV Firmware Vulnerability This repo contains an exploit for a vulnerability in the SEV firmware. The exploit allows decrypting arbitrary memory of an SEV-SNP guest after it's been decommissioned. Tested on version 1.55.16 latest as of time of writing. Root Cause snpreclaimbuffer unconditionally...

cve-2023-20573-poc

PoC Usage This repo contains a VMM that boots an SEV-SNP guest with a custom kernel. The VMM and kernel are a stripped-down version of a project of mine. A modified Linux kernel is required to run on the host: https://github.com/Freax13/linux/tree/for-amd. The Proof of Concept can be run like thi...

POC_CVE-2025-29943_Write-what-where-Condition

StackWarp: PoC для CVE-2025-29943 Проверка концепции для аппаратной уязвимости StackWarp CVE-2025-29943 в процессорах AMD. Эта ошибка позволяет атакующему с привилегиями администратора на хосте гипервизоре манипулировать конфигурацией конвейера ЦП для повреждения указателя стека внутри гостевой...

Rocky Linux 8 [CIQ] Security Update: iwl100-firmware / iwl1000-firmware / iwl105-firmware / etc Multiple Vulnerabilities (crlsa-2024_7481)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20247481 advisory. kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity CVE-2023-20584 kernel: hw: amd:Incomplete system memor...

AlmaLinux 9.2 [TuxCare] Security Update: iwl100-firmware / iwl1000-firmware / iwl105-firmware / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1740470712)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1740470712 advisory. - IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with...

CVE-2026-53360-POC

CVE-2026-53360: KVM SEV-SNP PSC heap out-of-bounds Proof of concept for a heap out-of-bounds read and write in KVM's SEV-SNP Page State Change PSC handling. A malicious SEV-SNP guest makes the host kernel walk a PSC entry array off the end of its slab allocation. That leaks the layout of...

SUSE-SU-2026:23962-1 Security update for the Linux Kernel (Live Patch 9 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.30.1 fixes various security issues: The following security issues were fixed: - CVE-2026-46150: fanotify: fix false positive on permission events bsc1267388. - CVE-2026-53360: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in u...

SUSE-SU-2026:23960-1 Security update for the Linux Kernel (Live Patch 0 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.5.1 fixes various security issues: The following security issues were fixed: - CVE-2026-46150: fanotify: fix false positive on permission events bsc1267388. - CVE-2026-53360: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in us...

CVE-2026-100839

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-100839 Contrast before 1.18.0 AML Injection Remote Code Execution

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

EUVD-2026-87849

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-100839: Improper Control of Generation of Code

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-92702

Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments. In versions up to and including 0.8.2, the intra-handshake attested TLS aTLS AMD SEV-SNP verification path does not enforce attestation freshness when the expected reportData value is nil,...

EUVD-2026-83192

Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments. In versions up to and including 0.8.2, the intra-handshake attested TLS aTLS AMD SEV-SNP verification path does not enforce attestation freshness when the expected reportData value is nil,...

CVE-2026-92702 Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path

Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments. In versions up to and including 0.8.2, the intra-handshake attested TLS aTLS AMD SEV-SNP verification path does not enforce attestation freshness when the expected reportData value is nil,...