Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build ID returned by HYPERVISORxenversionXENVERbuildid is neither terminated with NUL nor a string. The first cause a buffer overflow because the sprintf function in buildidshow...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tty: serial: imx: disable Ageing Timer interrupt request irq There might be pending USR interrupts before requesting the IRQ. However, the uartaddoneport function has not been executed, which could lead to a kernel panic. 0.79566...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fixed a situation where a hard lockup occurs in the virtual machine after prolonged inactivity, due to the periodic HV timer. When advancing the expiration of the guest’s APIC timer in periodic mode, set the expiration ...

Astra Linux – Vulnerability in Xen

Inappropriate x86 IOMMU timeout detection/handling: IOMMU processes commands that are issued in parallel with the operation of the CPUs that issue those commands. In the current implementation in Xen, asynchronous notifications of the completion of such commands are not used. Instead, the issuing...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel before version 6.9, a trusted-to-non-trusted hypervisor can inject Virtual Interrupt 29 VC at any point in time and can trigger its handler. This affects AMD SEV-SNP and AMD SEV-ES...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: x86/kvm: The teardown of PV features also occurs during boot-up. Various PV features Async PF, PV EOI, steal time work through memory shared with the hypervisor. When we resume from hibernation, we must properly teardown all...

Astra Linux – Vulnerability in amd64-microcode

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to influence the cache line write-back behavior of the CPU, resulting in a potential loss of integrity of the guest virtual machine VM memory...

Xen: Stale TLB Entry Ahead of Page Scrubbing (XSA-511)

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

MiracleLinux 8 : microcode_ctl-20260812-1.el8_10 (AXSA:2026-1799:07)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-1799:07 advisory. kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling CVE-2025-35973 kernel: microcodectl: Intel Xeon 6...

microcode_ctl security, bug fix, and enhancement update

An update is available for microcodectl. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The microcodectl packages provide microcode updates for Intel and AMD...

Oracle VirtualBox VMSVGA Race Condition Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the VMSVGA...

Oracle VirtualBox VMSVGA Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within...

Oracle VirtualBox IDisplay Out-Of-Bounds Read Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the IDispla...

Oracle VirtualBox VirtioSCSI Uninitialized Memory Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within...

Oracle VirtualBox VirtioSCSI Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within...

RockyLinux 8 : microcode_ctl (RLSA-2026:65147)

The remote RockyLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RLSA-2026:65147 advisory. kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling CVE-2025-35973 kernel: microcodectl: Intel Xeon 6...

CVE-2026-79602

A flaw was found in Xen. A malicious guest operating system, when configured with a PCI device that has a Base Address Register BAR mapped to the I/O port space, can trigger an internal error within the Xen hypervisor. This vulnerability could lead to a denial of service, causing the host system ...

CVE-2026-72961

CVE-2026-72961 is an out-of-bounds read vulnerability in Windows Hyper-V that allows a local, authorized attacker to elevate privileges. The CVSS 3.1 score is 8.2 (HIGH) , with a vector of AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H, indicating that exploitation requires existing high privileges on the s...

Windows Hyper-V Remote Code Execution Vulnerability

Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally...

Security update for xen

This update for xen fixes the following issues: Update to version 4.20.3 jscPED-8907. Security issues fixed: CVE-2026-42493: x86 shadow paging is deprecated bsc1271528. CVE-2026-42494,CVE-2026-42495,CVE-2026-62423,CVE-2026-62424,CVE-2026-62425: buffer overruns in libfsimage iso9660 handling...