CVE-2026-0427

MediumCVSS 4.6/10Last modified Oct 26, 2026

Description

Improper cleanup of shared register resources in GPU firmware could allow an admin-privileged attacker from a Guest Virtual machine (VM) to access these shared resources from another Guest VM, potentially resulting in the loss of confidentiality, integrity, or availability.

Metrics

CVSS 4.0 4.6/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-459

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
AMD	AMD Instinct™ MI210	—
AMD	AMD Instinct™ MI300X	—
AMD	AMD Instinct™ MI325X	—
AMD	AMD Radeon™ PRO V710	—

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6027.html

Timeline

Published: May 15, 2026
Last modified: Oct 26, 2026
NVD status: Awaiting Analysis

Related CVEs from 2026

CVE-2026-04281.8Insufficient parameter sanitization in TEE SOC Driver could allow an attacker to issue a malformed DRV_SOC_CMD_ID_SRIOV_COPY_VF_CHIPLET_REGS CVE-2026-04328.5Incorrect default permissions in the installation directory for the AMD chipset driver could allow an attacker to achieve privilege escalati CVE-2026-04356.0Operation on a resource after expiration or release in the AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with a CVE-2026-04366.9Insufficient parameter sanitization in the AMD Secure Processor (ASP) trusted execution environment (TEE) SPDM driver could allow an attacke CVE-2026-04385.4A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker cou CVE-2026-04544.6An out-of-bounds write in the AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to corrupt global firmwa CVE-2026-04555.9The Versal™ AI Edge Series Gen 2 Peripheral Protection Unit (XPPU) for the inter-processor interrupt (IPI) buffers does not block unauthoriz CVE-2026-04601.0Improper authentication in Bootgen could result in the use of a fixed salt value for RSA padding instead of a randomly generated salt, poten CVE-2026-04617.5Insufficient boundary validation in the USB boot mode implementation of AMD Zynq™ UltraScale+ MPSoC and RFSoC devices could allow unbounded CVE-2026-04655.6A Use‑After‑Free (UAF) vulnerability in the AMD Ryzen™ Master Utility Driver could allow a local attacker to access kernel memory, potential CVE-2026-04665.5Improper access control in AMD uProf may allow a local attacker with user privileges to write to the kernel-shared memory section, potential CVE-2026-04706.8Null pointer dereference in AMD Embedded SPI Flash driver could allow a local user to potentially cause a loss of availability.