Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011302)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011302 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of...

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...

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...

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...

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-2026-007214)

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...

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-2026-007595)

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...

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...