Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002570)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002570 advisory. The nestedvmxcheckvmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS user...

CVE-2026-20935

Untrusted pointer dereference in Windows Virtualization-Based Security VBS Enclave allows an unauthorized attacker to disclose information locally...

CVE-2026-20819

Untrusted pointer dereference in Windows Virtualization-Based Security VBS Enclave allows an authorized attacker to disclose information locally...

CVE-2026-20938

Untrusted pointer dereference in Windows Virtualization-Based Security VBS Enclave allows an authorized attacker to elevate privileges locally...

CVE-2025-71104

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104 KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104

The CVE-2025-71104 entry concerns the Linux kernel KVM on x86 with the HV timer. Root cause: when advancing the guest APIC timer expiration in periodic mode, adding a period to a past target expiration can create an unbounded sequence of hrtimer IRQs; if the guest is paused, this can trigger host...

CVE-2025-71104 KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

PT-2026-37473

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nSVM component where the VMLOAD/VMSAVE emulation code fails to consistently use vmcb01. When VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by...

Windows VBS Disclosure Sensitive Information

The vulnerability of the trusted execution environment for Windows Virtualization-Based Security VBS operating systems is related to unreliable pointer aliasing. Exploiting this vulnerability can allow an attacker to disclose sensitive information that is protected by security measures...

MiracleLinux 3 : kvm-83-249.0.1.AXS3 (AXSA:2012-643:01)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-643:01 advisory. KVM for Kernel-based Virtual Machine is a full virtualization solution for Linux on x86 hardware. Using KVM, one can run multiple virtual machines...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001539)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001539 advisory. The nestedvmxcheckvmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS user...

MiracleLinux 4 : libguestfs-1.7.17-17.0.1.AXS4 (AXSA:2011-500:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-500:01 advisory. Libguestfs is a library for accessing and modifying guest disk images. Amongst the things this is good for: making batch configuration changes to guests,...

MiracleLinux 4 : qemu-kvm-0.12.1.2-2.113.AXS4.8 (AXSA:2011-97:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-97:01 advisory. KVM for Kernel-based Virtual Machine is a full virtualization solution for Linux on x86 hardware. Using KVM, one can run multiple virtual machines running...

MiracleLinux 3 : xen-3.0.3-41.7AXS3 (AXSA:2008-256:01)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2008-256:01 advisory. This package contains the Xen tools and management daemons needed to run virtual machines on x86, x8664, and ia64 systems. Information on how to use...

MiracleLinux 3 : xen-3.0.3-135.2.0.1.AXS3 (AXSA:2012-345:01)

The remote MiracleLinux 3 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2012-345:01 advisory. This package contains the Xen tools and management daemons needed to run virtual machines on x86, x8664, and ia64 systems. Information on how to use Xen can b...

MiracleLinux 4 : qemu-kvm-0.12.1.2-2.209.AXS4.4 (AXSA:2012-478:01)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-478:01 advisory. KVM for Kernel-based Virtual Machine is a full virtualization solution for Linux on x86 hardware. Using KVM, one can run multiple virtual machines...

Microsoft Patch Tuesday for January 2026 — Snort rules and prominent vulnerabilities

Microsoft has released its monthly security update for January 2026, which includes 112 vulnerabilities affecting a range of products, including 8 that Microsoft marked as "critical". In this month's release, Microsoft observed one of the included "important" vulnerabilities, CVE-2026-20805, as...