14583 matches found
PT-2026-33841
In OpenXiangShan NEMU, when Smstateen is enabled, clearing mstateen0.ENVCFG does not correctly restrict access to henvcfg and senvcfg. As a result, less-privileged code may read or write these CSRs without the required exception, potentially bypassing intended state-enable based isolation control...
CVE-2026-29649
The NEMU open-source teaching system simulator contains an implementation flaw in its RISC-V Hypervisor CSR handling. Specifically, the henvcfg[7:4] fields (related to CBIE, CBCFE, and CBZE) are incorrectly masked or updated based on menvcfg[7:4] . This allows a machine-mode write to menvcfg to i...
CVE-2026-29649
NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...
PT-2026-33830
NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...
NEMU security vulnerabilities
NEMU is an open-source teaching system simulator developed by XiangShan. NEMU has a security vulnerability, which stems from implementation defects in the RISC-V Hypervisor CSR. This defect may lead to incorrect virtualization configuration execution, causing unexpected traps or denial-of-service...
CVE-2026-29646
In OpenXiangShan NEMU prior to 55295c4, when running with RVH Hypervisor extension enabled, a VS-mode guest write to the supervisor interrupt-enable CSR sie may be handled incorrectly and can influence machine-level interrupt enable state mie. This breaks privilege/virtualization isolation and ca...
PT-2026-33839
In OpenXiangShan NEMU prior to 55295c4, when running with RVH Hypervisor extension enabled, a VS-mode guest write to the supervisor interrupt-enable CSR sie may be handled incorrectly and can influence machine-level interrupt enable state mie. This breaks privilege/virtualization isolation and ca...
CVE-2026-29648
In OpenXiangShan NEMU, when Smstateen is enabled, clearing mstateen0.ENVCFG does not correctly restrict access to henvcfg and senvcfg. As a result, less-privileged code may read or write these CSRs without the required exception, potentially bypassing intended state-enable based isolation control...
OESA-2026-1992 qemu security update
QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: A flaw was found in the virtio-crypto device of QEMU. A malicious guest operating system can exploit a missing length limit in the AKCIPHER path, leading to uncontrolled memory allocation...
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007595)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007595 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of...
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007468)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007468 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Prevent access to vCPU events before init Another day, another syzkaller bug. KVM...
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007214)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007214 advisory. In the Linux kernel, the following vulnerability has been resolved: uiohvgeneric: Fix a memory leak in error handling paths If 'vmbusestablishgpadl' fails, the...
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007227)
"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007227 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: fix race during shadow creation Right now it is possible to see gmap-private...
SUSE-SU-2026:1413-1 Security update for ovmf
This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...
LUA File Virtualization Filter Driver Privilege Escalation
The vulnerability of the LUA File Virtualization Filter Driver in Windows operating systems is related to synchronization errors when using shared resources „Race Conditions“. Exploiting this vulnerability can allow an attacker to increase their privileges...
Windows Virtualization-Based Security Trust Execution Environment
The vulnerability of the trusted execution environment for the Windows operating system’s Virtualization-Based Security VBS mechanism is related to access control errors. Exploiting this vulnerability can allow a perpetrator to circumvent existing security restrictions...
VBS Trusted Execution Environment
The vulnerability of the trusted execution environment for Windows-based Virtualization-Based Security VBS operating systems is related to unreliable pointer aliasing. Exploiting this vulnerability can allow an attacker to circumvent security restrictions...
EUVD-2026-22607
Improper access control in Windows Virtualization-Based Security VBS Enclave allows an authorized attacker to bypass a security feature locally...
