The vulnerability of the send_ipi() function in cross-platform Xen hypervisors of Linux operating systems allows attackers to access confidential information.

The vulnerability of the sendipi function in the cross-platform hypervisor of the Linux operating system is related to reading data outside of the allowed range. Exploiting this vulnerability can allow a remote attacker to gain access to confidential information...

The vulnerability of the vpmask_set() function in the cross-platform hypervisor of the Linux operating system allows a attacker to increase their privileges.

The vulnerability of the vpmaskset function in the cross-platform hypervisor of the Linux operating system is related to an error in boundary checking during the processing of the HVVPSET format. Exploiting this vulnerability can allow a remote attacker to gain increased privileges...

SUSE CVE-2023-53756

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcstouchmsrbitmap function uses...

Linux Distros Unpatched Vulnerability : CVE-2023-53756

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of...

CVE-2025-48623

In initpkvmhypvcpu of pkvm.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

UBUNTU-CVE-2023-53756

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcstouchmsrbitmap function uses...

CVE-2023-53756: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcstouchmsrbitmap function uses...

PT-2025-49486

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the KVM component, specifically related to nested hypervisor operation on Hyper-V. The issue stems from an uninitialized current vmcs variable...

EUVD-2025-201191

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value U32MAX - sizeofstruct ffacompositememregion + 1, U32MAX is...

USN-7910-1: Linux kernel (Azure FIPS) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

USN-7879-4 linux-gcp-6.14, linux-raspi vulnerabilities

It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. CVE-2024-36331 Several security issues were discovered in the Linux kernel. An attacker could possibly use...

USN-7879-4: Linux kernel vulnerabilities

It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. CVE-2024-36331 Several security issues were discovered in the Linux kernel. An attacker could possibly use...

Linux Distros Unpatched Vulnerability : CVE-2025-40266

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large...

Breaking Isolation: A New Perspective on Hypervisor Exploitation Via Cross-Domain Attacks

Hypervisors are under threat by critical memory safety vulnerabilities, with pointer corruption being one of the most prevalent and severe forms. Existing exploitation frameworks depend on identifying highly-constrained structures in the host machine and accurately determining their runtime...

Oracle Linux 9 : kernel (ELSA-2025-21469)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-21469 advisory. - kernfs: Fix UAF in polling when open file is released Pavel Reichl RHEL-122087 CVE-2025-39881 - i40e: add max boundary check for VF filters Michal...

[SECURITY] [DSA 6068-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6068-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff December 02, 2025 https://www.debian.org/security/faq -...

xen: fix UAF in dmabuf_exp_from_pages()

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USN-7879-3: Linux kernel vulnerabilities

It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. CVE-2024-36331 Several security issues were discovered in the Linux kernel. An attacker could possibly use...

USN-7879-3 linux-aws-6.14, linux-oracle-6.14 vulnerabilities

It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. CVE-2024-36331 Several security issues were discovered in the Linux kernel. An attacker could possibly use...

kernel: x86/vmscape: Add conditional IBPB mitigation

In the Linux kernel, the following vulnerability has been resolved: x86/vmscape: Add conditional IBPB mitigation VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a userspace hypervisor like QEMU. Existing mitigations already protect kernel/KVM...