CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401 KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401 KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401

CVE-2026-23401: In the Linux kernel KVM x86/mmu, a race allowed installing an MMIO SPTE without first zapping an existing shadow-present SPTE when guest memory writes occurred outside KVM’s scope. This could enable a guest‑memory–related fault to leave a shadow SPTE intact when an MMIO SPTE is in...

PT-2026-29485

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the fact that the existing SPTE was not deleted before installing the simulated MMIO SPTE,...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from improper checks during the processing of shadow memory when the direct MMU overwrites the SPTE. This...

PT-2026-29484

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc2-eafebd2d2ab0-sink-vm 319 Description A flaw was discovered in the Linux kernel's KVM component related to the handling of shadow-present SPTEs Stale Page Table Entries during the installation of emulate...

CVE-2026-29516

Buffalo TeraStation NAS TS5400R firmware version 4.02-0.06 and prior contain an excessive file permissions vulnerability that allows authenticated attackers to read the /etc/shadow file by uploading and executing a PHP file through the webserver. Attackers can exploit world-readable permissions o...

CVE-2019-25472

IntelBras Telefone IP TIP200 and 200 LITE contain an unauthenticated arbitrary file read vulnerability in the dumpConfigFile function accessible via the cgiServer.exx endpoint. Attackers can send GET requests to /cgi-bin/cgiServer.exx with the command parameter containing dumpConfigFile to read...

Security Barriers to Trustworthy AI-Driven Cyber Threat Intelligence in Finance: Evidence from Practitioners

Financial institutions face increasing cyber risk while operating under strict regulatory oversight. To manage this risk, they rely heavily on Cyber Threat Intelligence CTI to inform detection, response, and strategic security decisions. Artificial intelligence AI is widely suggested as a means t...

EUVD-2019-19961

NetNumber Titan Master 7.9.1 contains a path traversal vulnerability in the drp endpoint that allows authenticated users to download arbitrary files by injecting directory traversal sequences. Attackers can manipulate the path parameter with base64-encoded payloads containing ../ sequences to...

CVE-2019-25610

NetNumber Titan Master 7.9.1 contains a path traversal vulnerability in the drp endpoint that allows authenticated users to download arbitrary files by injecting directory traversal sequences. Attackers can manipulate the path parameter with base64-encoded payloads containing ../ sequences to...

CVE-2019-25610

NetNumber Titan Master 7.9.1 contains a path traversal vulnerability in the drp endpoint that allows authenticated users to download arbitrary files by injecting directory traversal sequences. Attackers can manipulate the path parameter with base64-encoded payloads containing ../ sequences to...

PT-2026-26998

NetNumber Titan Master 7.9.1 contains a path traversal vulnerability in the drp endpoint that allows authenticated users to download arbitrary files by injecting directory traversal sequences. Attackers can manipulate the path parameter with base64-encoded payloads containing ../ sequences to...

MCP Servers Are the New Shadow IT for AI

Key Takeaways MCP servers are becoming the default wiring between AI agents and enterprise applications — but most organizations have zero visibility into where they are, what they expose, or how they can be abused. Qualys TotalAI now provides layered discovery of MCP servers across network, host...

Security Bulletin: IBM System Storage Support for Microsoft Volume Shadow Copy Service and Virtual Disk Service is vulnerable due to jackson-core. (CVE-2025-52999)

Summary jackson-core-2.13.1.jar is updated to jackson-core-2.18.3.jar in the latest IBM System Storage Support for Microsoft Volume Shadow Copy Service and Virtual Disk Service repo where security vulnerability is not observed. CVE-2025-52999. Vulnerability Details CVEID:CVE-2025-52999 DESCRIPTIO...

EulerOS Virtualization 2.12.1 : systemd (EulerOS-SA-2026-1466)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A vulnerability was found in systemd-coredump. This flaw allows an attacker to force a SUID process to crash and replace it with a...