CVE-2026-53360-POC

CVE-2026-53360: KVM SEV-SNP PSC heap out-of-bounds Proof of concept for a heap out-of-bounds read and write in KVM's SEV-SNP Page State Change PSC handling. A malicious SEV-SNP guest makes the host kernel walk a PSC entry array off the end of its slab allocation. That leaks the layout of...

AlmaLinux 9.2 [TuxCare] Security Update: qemu-guest-agent / qemu-img / qemu-kvm / qemu-kvm-audio-pa / etc (ALMALINUX9.2:CLSA-2026:1784806096)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784806096 advisory. - A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors...

PT-2026-89228

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: An unknown vulnerability exists in QEMU, with no detailed description available at this time.CVE-2026-15264 CVE-2026-16457 is a security vulnerability in QEMU. The specific details of thi...

PT-2026-89203

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: An unknown vulnerability exists in QEMU, with no detailed description available at this time.CVE-2026-15264 CVE-2026-16457 is a security vulnerability in QEMU. The specific details of thi...

EulerOS Virtualization 2.13.1 : qemu (EulerOS-SA-2026-3205)

According to the versions of the qemu packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input...

RUSTSEC-2026-0268 Guest controlled-size host heap allocation through WASIp3 streams

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-x84v-gj2h-g759 For more information see the GitHub-hosted security advisory...

Guest controlled-size host heap allocation through WASIp3 streams

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-x84v-gj2h-g759 For more information see the GitHub-hosted security advisory...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Requires the use of a scratch area if GHCB v2+ is in use According to the GHCB specification, when using GHCB v2+, it is required that the software scratch area resides in the GHCB’s shared buffer. Note that features li...

Security update for libslirp

This update for libslirp fixes the following issues: CVE-2026-9539: crafted TCP segment with manipulated URG flags and urgent pointers can cause an integer underflow and host-heap memory leak bsc1268903. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods...

UBUNTU-CVE-2026-53360

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use As per the GHCB spec, when using GHCB v2+ require the software scratch area to reside in the GHCB's shared buffer. Note, things like Page State Change PSC requests rely...

PT-2026-55698

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV subsystem where the setup vmgexit scratch function allocates a buffer using kvzalloc based on a guest-controlled variable exit info 2. The snp begin psc...

AZL-90912 CVE-2026-9539 affecting package libslirp for versions less than 4.9.3-1

An out-of-bounds heap read and integer underflow in the TCP urgent data handling sosendoob in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments e.g., QEMU allows a privileged guest VM attacker root or CAPNETRAW to leak gigabytes of sensitive host-process heap memory v...

SUSE CVE-2026-48914

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an...

CVE-2026-48914

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an...

CVE-2026-44004

CVE-2026-44004 affects vm2, an open‑source VM/sandbox for Node.js. Before version 3.11.0, sandboxed code can call Buffer.alloc() with any size, allocating host-heap memory directly via a synchronous C++ call; vm2’s timeout cannot interrupt such calls. A single request can exhaust memory and crash...

CVE-2026-44004

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interrupt it. A single request can exhaust ho...

Advisory ROSA-SA-2023-2302

software: qemu 7.2.0 OS: ROSA-CHROME packageevrstring: qemu-7.2.0-2.src.rpm CVE-ID: CVE-2023-0330 BDU-ID: 2023-04834 CVE-Crit: MEDIUM CVE-DESC.: A vulnerability in the lsi53c895a.c component of the QEMU hardware emulator is related to writing beyond buffer boundaries. Exploitation of the...

CVE-2023-4135 Out-of-bounds read information disclosure vulnerability

A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can ...

CVE-2023-4135

A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can ...

SUSE CVE-2016-9103

The v9fsxattrcreate function in hw/9pfs/9p.c in QEMU aka Quick Emulator allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them...