13442 matches found
EUVD-2026-23962
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...
EUVD-2026-23944
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...
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...
NEMU 安全漏洞
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...
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...
CVE-2026-29649
The CVE concerns NEMU’s RISC-V Hypervisor CSR handling. Specifically, henvcfg[7:4] (CBIE/CBCFE/CBZE fields) is incorrectly masked/updated by menvcfg[7:4], so a machine-mode write to menvcfg can implicitly modify the hypervisor environment configuration. This can cause incorrect enforcement of vir...
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...
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
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-2026-33839
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...
PureRAT: A Multi-Stage, Fileless RAT Utilizing Image Steganography and Process Hollowing
PureRAT: A Multi-Stage, Fileless RAT Utilizing Image Steganography and Process Hollowing By Prashanth A N and Mallikarjun Wali · April 20, 2026 PureRAT is an advanced remote access trojan RAT characterized by its complex infection stages. The intrusion sequence is initiated by a malicious .LNK fi...
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...
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...
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-2026-007214)
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-2026-007468)
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-2026-007227)
"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...