Vulnerability · Published Oct 6, 2026 · Assigned by AMD
CVE-2026-43598
High 7.7
In plain English
A high-severity security flaw in AMD Instinct™ MI210 from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 4.0)7.7High
Exploit odds (30 days)0.3%top 76.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | rccl | no fix listed | DEBIAN-CVE-2026-43598 |
| Ubuntu:24.04:LTS | rccl | no fix listed | UBUNTU-CVE-2026-43598 |
| Ubuntu:26.04:LTS | rccl | no fix listed | UBUNTU-CVE-2026-43598 |
| Ubuntu:26.10 | rccl | no fix listed | UBUNTU-CVE-2026-43598 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD Instinct™ MI210 | see references |
| AMD | AMD Instinct™ MI250 | see references |
| AMD | AMD Instinct™ MI300A | see references |
| AMD | AMD Instinct™ MI300X | see references |
| AMD | AMD Instinct™ MI325X | see references |
| AMD | AMD Instinct™ MI350X | see references |
| AMD | AMD Instinct™ MI355X | see references |
| AMD | AMD Instinct™ MI308X | see references |
| AMD | AMD Instinct™ MI250X | see references |
Weakness: CWE-822 · Vector: 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