RCCL Vulnerability
Summary
A researcher reported a vulnerability in the AMD ROCm Communication Collectives Library (RCCL). Due to insufficient validation of attacker-controlled data within the RCCL proxy communication path, a remote attacker may be able to disclose memory contents and bypass ASLR protections, potentially resulting in remote code execution in the context of the RCCL process.
CVE Details
Refer to Glossary for explanation of terms
| CVE | CVE Description | CVSS Base Score |
| CVE-2026-43598 | 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. | 7.7 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 |
Specific CVSS scores may change subject to your implementation. We encourage you to calculate CVSS scores independently for your system.
Affected Products
AMD recommends implementing the mitigated version indicated below.
*Note: Products believed to not be affected by the listed CVEs are not included.
AMD Adaptive SoCs and FPGAs
Product |
CVE ID |
Mitigation |
Mitigation Release Date |
AMD Instinct™ MI210 |
CVE-2026-54974 |
ROCm 7.14 |
2026-07-15 |
AMD Instinct™ MI250 |
CVE-2026-54974 |
||
AMD Instinct™ MI250X |
CVE-2026-54974 |
||
AMD Instinct™ MI300A |
CVE-2026-54974 |
||
AMD Instinct™ MI300X |
CVE-2026-54974 |
||
AMD Instinct™ MI308X |
CVE-2026-54974 |
||
AMD Instinct™ MI325X |
CVE-2026-54974 |
||
AMD Instinct™ MI350X |
CVE-2026-54974 |
||
AMD Instinct™ MI355X |
CVE-2026-54974 |
Acknowledgement
AMD thanks the following for reporting and engaging in coordinated vulnerability disclosure:
- Researcher: Luna Nova (lunnova.dev)
Revisions
| Revision Date | Description |
| 2026-09-30 | Initial version |
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