AlmaLinux 8 : virt:rhel and virt-devel:rhel (ALSA-2026:5578)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:5578 advisory. qemu-kvm: VNC WebSocket handshake use-after-free CVE-2025-11234 Tenable has extracted the preceding description block directly from the AlmaLinux security advisory...

RHSA-2026:5578 Red Hat Security Advisory: virt:rhel and virt-devel:rhel security update

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SUSE-SU-2026:20873-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues. The following security issues were fixed: - CVE-2025-39753: gfs2: Set .migratefolio in gfs2rgrp,metaaops bsc1249590. - CVE-2025-39964: crypto: afalg - Disallow concurrent writes in afalgsendmsg bsc1251966. -...

SUSE-SU-2026:20838-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues. The following security issues were fixed: - CVE-2025-39753: gfs2: Set .migratefolio in gfs2rgrp,metaaops bsc1249590. - CVE-2025-39964: crypto: afalg - Disallow concurrent writes in afalgsendmsg bsc1251966. -...

SUSE-SU-2026:21284-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues. The following security issues were fixed: - CVE-2025-39753: gfs2: Set .migratefolio in gfs2rgrp,metaaops bsc1249590. - CVE-2025-39964: crypto: afalg - Disallow concurrent writes in afalgsendmsg bsc1251966. -...

PT-2026-28187

Name of the Vulnerable Software and Affected Versions Database Backup for WordPress versions prior to 2.5.3 Description An authorization bypass exists because the plugin fails to restrict access to the wp db temp dir parameter, which determines the storage location for database backups...

The vulnerability of the paging64_cmpxchg_gpte() function in the arch/x86/kvm/mmu/paging_tmpl.h subsystem of the virtualization subsystem on the Linux kernel-based x86 platform allows a attacker to cause a service failure.

The vulnerability of the paging64cmpxchggpte function in the arch/x86/kvm/mmu/pagingtmpl.h subsystem of the virtualization subsystem on the Linux x86 kernel platform is related to the use of insufficiently random values. Exploiting this vulnerability could allow an attacker to cause a service...

The vulnerability of the sev_launch_measure() function in the arch/x86/kvm/svm/sev.c module of the virtualization subsystem on the x86 kernel of the Linux operating system allows a attacker to access protected information or cause service failures.

The vulnerability of the sevlaunchmeasure function in the arch/x86/kvm/svm/sev.c module of the virtualization subsystem on the Linux operating system’s x86 kernel is related to access to an uninitialized pointer. Exploiting this vulnerability could allow an attacker to gain access to protected...

SUSE-SU-2026:20880-1 Security update for the Linux Kernel (Live Patch 5 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-25.1 fixes various security issues The following security issues were fixed: - CVE-2025-21738: ata: libata-sff: ensure that we cannot write outside the allocated buffer bsc1257118. - CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to...

RLSA-2026:5578 Moderate: virt:rhel and virt-devel:rhel security update

Kernel-based Virtual Machine KVM offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the...

Moderate: Red Hat Security Advisory: virt:rhel and virt-devel:rhel security update

An update for the virt:rhel and virt-devel:rhel module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availab...

qemu-kvm: VNC WebSocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network acces...

Moderate: virt:rhel and virt-devel:rhel security update

Kernel-based Virtual Machine KVM offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the...

CVE-2026-23554

A flaw was found in Xen. An optimization in the Intel Extended Page Table EPT paging code, used by Xen, defers flushing cached EPT state. However, the freeing of paging structures is not similarly deferred. This can result in freed memory pages remaining in the cached state, allowing stale entrie...

ALPINE-CVE-2026-23555

Any guest issuing a Xenstore command accessing a node using the illegal node path "/local/domain/", will crash xenstored due to a clobbered error indicator in xenstored when verifying the node path. Note that the crash is forced via a failing assert statement in xenstored. In case xenstored is...

CTF As a Service: A Reproducible and Scalable Infrastructure for Cybersecurity Training

Capture The Flag CTF competitions have established themselves as a highly effective pedagogical tool in cybersecurity education, offering students hands-on experience in realistic attack and defense scenarios. However, organizing and hosting these events requires considerable infrastructure effor...

PT-2026-34913

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the x86 CPU handling where the X86 CR4 FRED bit was included in the CR4 pinned bits mask. During boot, FRED is initialized on the Bootstrap Processor BSP and...

Huawei EulerOS: Security Advisory for curl (EulerOS-SA-2026-1627)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for qemu (EulerOS-SA-2026-1644)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for curl (EulerOS-SA-2026-1635)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...