---
id: CVE-2026-43598
title: >-
  Improper input validation in the AMD ROCm Communication Collectives Library
  (RCCL) could allow a compromised peer rank or network-adjacent attacker to
  dereference an attacker-controlled pointer, potentially resulting in remote
  code execu…
summary: >-
  Improper input validation in the AMD ROCm Communication Collectives Library
  (RCCL) could allow a compromised peer rank or network-adjacent attacker to
  dereference an attacker-controlled pointer, potentially resulting in remote
  code execu…
severity: high
cvss: 7.7
cvssVector: 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-822
vendor: AMD
product: AMD Instinct™ MI210
affected:
  - instinct_mi210 (all versions)
  - instinct_mi250 (all versions)
  - instinct_mi300a (all versions)
  - instinct_mi300x (all versions)
  - instinct_mi325x (all versions)
  - instinct_mi350x (all versions)
  - instinct_mi355x (all versions)
  - instinct_mi308x (all versions)
  - instinct_mi250x (all versions)
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:20.680'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43598'
references:
  - url: >-
      https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6033.html
    label: psirt@amd.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-06T21:20:28.990Z'
---

## Overview

Improper input validation in the AMD ROCm Communication Collectives Library (RCCL) could allow a compromised peer rank or network-adjacent attacker to dereference an attacker-controlled pointer, potentially resulting in remote code execution.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.