CVE-2026-17042

CVE-2026-17042 is an out-of-bounds read (CWE-125) in IBM Power Systems host firmware NVRAM parsing . An attacker with root access to a guest partition on an OpenPOWER system can write a crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. The conditi...

CVE-2026-17042 Power System Out-of-bounds Read

IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 Power9, and OP940.00 - OP940.81 Power HMC is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM...

CVE-2026-72412

A flaw was found in the Linux kernel's memory management for s390 systems. An internal flag, intended to mark guest memory pages for discard after unmapping by the Kernel-based Virtual Machine KVM, was not consistently cleared when those pages were subsequently reused. This improper handling coul...

USN-8652-1 libvirt vulnerabilities

It was discovered that libvirt incorrectly handled guest reboots in the libxl driver. An attacker in a guest could possibly use this issue to cause the libvirt daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. CVE-2021-4147 Alexander Kuznetsov discovere...

CVE-2026-74356

A flaw was found in the Linux kernel's vhost subsystem. An incorrect return value from the vhostgetavailidx function can cause the host to livelock. A malicious guest operating system OS can exploit this by not processing virtqueue entries, leading to the host repeatedly disabling notifications a...

CVE-2026-72278

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for arm64 systems. This vulnerability occurs when a guest operating system attempts to access the Virtualization Nested Control Register VNCR page. If the guest reads from VNCR before writing to it, KVM may incorrectly handle...

CVE-2026-67443

FUXA is a web-based Process Visualization SCADA/HMI/Dashboard software. In 1.3.2 and earlier, the allowDashboard authorization gate in server/integrations/node-red/index.js calls authJwt.verify for /nodered without inspecting the decoded identity. When nodeRedEnabled is true, secureEnabled is tru...

CVE-2026-67443 FUXA: Unauthenticated guest JWT bypasses Node-RED secure-mode authorization gate (Remote Script Execution)

FUXA is a web-based Process Visualization SCADA/HMI/Dashboard software. In 1.3.2 and earlier, the allowDashboard authorization gate in server/integrations/node-red/index.js calls authJwt.verify for /nodered without inspecting the decoded identity. When nodeRedEnabled is true, secureEnabled is tru...

CVE-2026-23933

In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid...

CVE-2026-23933

In Zabbix 7.4, the frontend session signing key was erroneously written to the database seed. When SAML authentication and guest users are both enabled, this key can be extracted and used to forge valid session cookies, enabling unauthorized access. CVSS 4.0 scores this HIGH (7.7). The Zabbix tic...

CVE-2026-23933 Hardcoded session key in Zabbix 7.4

In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid...

EUVD-2026-60737

In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid...

Linux Distros Unpatched Vulnerability : CVE-2026-72277

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if...

Linux Distros Unpatched Vulnerability : CVE-2026-74311

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - virtio: rtc: tear down old virtqueues before restore virtiodevicerestore resets the device and restores the negotiated features before calling -restore...

PT-2026-76959

Name of the Vulnerable Software and Affected Versions Zabbix version 7.4 Description The cryptographic key used for signing Frontend sessions is incorrectly written to the database seed. This issue affects deployments that simultaneously use SAML authentication and guest users, allowing the key t...

ANT-2026-PQ3CNCCK · firecracker-microvm/firecracker · Memory Safety / Out-of-Bounds Read+Write (unsafe Rust)

oob-read high CVE-2026-5747 GHSA-776c-mpj7-jm3r Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-PQ3CNCCK: Virtio-PCI queue size writable after activation enables host OOB I...

CVE-2026-72086

A flaw was found in the Linux kernel's scsi: xen: scsiback component. A pvSCSI guest can trigger a resource leak by issuing specific SCSI Small Computer System Interface requests when a task management operation fails. This vulnerability allows the guest to leak command tags associated with a...

CVE-2026-72085

A flaw was found in the Linux kernel's scsi: xen: scsiback component. This vulnerability allows a malicious virtualized SCSI pvSCSI guest to trigger a reference count underflow by sending specially crafted requests. This can lead to a denial of service, potentially stopping a Logical Unit Number...

CVE-2026-10527

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fails to reconcile SchemeAdmin flags with a user's current role which allows a user demoted to System Guest to retain Board Admin privileges and perform admin-only operations via the Boards REST API or UI.. Mattermost Adviso...

CVE-2026-16044

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21 fail to prevent guest users from receiving Board Admin privileges during board archive import which allows a board member to escalate a guest user to Board Admin via importing a crafted .boardarchive file. Mattermost Advisory ID:...