Zapscape

The KVM Escape Trilogy ITScape CVE‑2026‑46316 | Januscape CVE‑2026‑53359 | Zapscape CVE‑2026‑64561 ---|---|--- Zapscape: Guest-to-Host Escape in KVM/x86 Abstract This document describes the Zapscape CVE-2026-64561 vulnerability discovered and reported by Hyunwoo Kim @v4bel. It is a KVM escape...

ITScape

ITScape: Guest-to-Host Escape in KVM/arm64 Abstract This document describes the ITScape CVE-2026-46316 vulnerability reported and patched by Hyunwoo Kim @v4bel. It is a KVM escape vulnerability that lets a guest escape to the host in a KVM/arm64 environment and run commands on the host with kerne...

Januscape

Januscape: Guest-to-Host Escape in KVM/x86 Abstract This document describes the Januscape CVE-2026-53359 vulnerability discovered and reported by Hyunwoo Kim @v4bel. It is a KVM escape vulnerability that lets a guest escape to the host in a KVM/x86 environment. To the best of public knowledge, th...

vbox_cve_2017_10235

CVE-2017-10235: VirtualBox E1000 device buffer overflow Introduction The following document details a bug found in VirtualBox v5.1.22 now fixed in v5.1.24, in the guest device emulation component DevE1000 Intel 82540EM Ethernet Controller Emulation, in the function e1kFallbackAddToFrame, which...

RWCTF21-VirtualBox-61-escape

RWCTF21-VirtualBox-61-escape 0day VirtualBox 6.1 Escape for RealWorld CTF 2020/2021 Demo What? This is our solution for RealWorld CTF's "Box Escape" challenge from the 2020/2021 quals. Currently a 0day but we'll add the CVE number once there is one. CVE-2021-2119 How does it work? We wrote a...

Januscape-Hotfix

Januscape Fix Library — CVE-2026-53359 简体中文 Complete fix collection for the CVE-2026-53359 guest-to-host escape vulnerability in the KVM/x86 shadow MMU. From zero-downtime livepatch to kernel upgrade — covers every operational scenario. One-liner Direct curl -sL...

CVE-2021-28476

CVE-2021-28476: a guest-to-host "Microsoft Hyper-V Remote Code Execution Vulnerability" in vmswitch.sys. This is a proof of concept for CVE-2021-28476 "Hyper-V Remote Code Execution Vulnerability", an arbitrary memory read in vmswitch.sys network virtualization service provider patched by Microso...

0vercl0k

0vercl0k PoC for CVE-2021-28476 a guest-to-host "Hyper-V Remote Code Execution Vulnerability" in vmswitch.sys...

CVE-2021-28476

CVE-2021-28476: Hyper-V vmswitch.sys arbitrary pointer dereference from guest VM Summary: A Hyper-V guest virtual machine can trigger a Denial-of-Service condition on its underlying host due to unsafe parsing of input by the VmsIfrInfoParamsOIDSWITCHNICREQUEST function in vmswitch.sys. The crash ...

januscape

Januscape — Linux KVM/x86 guest-to-host escape tracking site Source for the Januscape patch-status tracker: a single-page site recording which distributions have shipped a fix for the KVM/x86 guest-to-host escape in the Linux kernel. Where the facts live Everything about the bug — CVE IDs, affect...

CVE-2026-101310

The bhyve hypervisor contains a vulnerability in its HDA audio device model because it fails to validate zero-length Buffer Descriptor List (BDL) entries when starting a stream. This oversight, combined with the fact that BDL fields can be modified by a guest after validation, allows for an out-o...

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...

CVE-2026-53359

🚨 CVE-2026-53359 — Januscape Linux KVM Shadow Paging Use-After-Free Guest-to-Host Escape Januscape is a Linux Kernel KVM vulnerability caused by a Use-After-Free UAF condition in the x86 Shadow MMU. Under vulnerable configurations, a malicious guest can corrupt host memory, leading to host crashe...

itscape

ITScape — Linux KVM/arm64 guest-to-host escape tracking site Source for the ITScape patch-status tracker: a single-page site recording which distributions have shipped a fix for the KVM/arm64 guest-to-host escape in the Linux kernel. Where the facts live Everything about the bug — CVE IDs, affect...

Exploit for CVE-2026-93834

CVE-2026-93834 — QEMU 9pfs guest escape tracking site Source...

Linux Distros Unpatched Vulnerability : CVE-2026-79994

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the...

CVE-2026-79994 Docker Sandboxes UDS forwarder can reach arbitrary host Unix sockets through a symlink race

The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to...

CVE-2026-79994

CVE-2026-79994 affects the guest-to-host Unix-domain socket (UDS) forwarder in Docker Sandboxes . The relay validates that a socket path resides inside an authorized workspace but later reconnects using the raw pathname. A malicious guest can exploit a symlink race by replacing an intermediate di...

PT-2026-93122

Name of the Vulnerable Software and Affected Versions Docker Sandboxes affected versions not specified Description The guest-to-host Unix-domain socket relay in Docker Sandboxes contains a flaw where it validates that a socket path is within an authorized workspace but subsequently reconnects usi...

Linux Distros Unpatched Vulnerability : CVE-2026-89727

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: GICv2: Don't WARN on out-of-range GICVDIR INTID vgicv2deactivate passes the INTID a guest wrote to GICVDIR straight to vgicgetvcpuirq, and treats a...