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Fencer Intel
high 7.7

CVE-2026-43598 json

Improper input validation in the AMD ROCm Communication Collectives Library (RCCL) could allow a compromised peer rank or network-adjacent…

published last mo. modified last mo. also EUVD-2026-93987

cvss
7.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

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 execution.

Patch / fix

  • AMD AMD Instinct™ MI210 ROCm 7.14
  • AMD AMD Instinct™ MI250 ROCm 7.14
  • AMD AMD Instinct™ MI300A ROCm 7.14
  • AMD AMD Instinct™ MI300X ROCm 7.14
  • AMD AMD Instinct™ MI325X ROCm 7.14
  • AMD AMD Instinct™ MI350X ROCm 7.14
  • AMD AMD Instinct™ MI355X ROCm 7.14
  • AMD AMD Instinct™ MI308X ROCm 7.14
  • AMD AMD Instinct™ MI250X ROCm 7.14

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-43598 updated cvss 7.5

rccl: rccl: Arbitrary code execution via improper input validation

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last mo.

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • AMD AMD Instinct™ MI210
  • AMD AMD Instinct™ MI250
  • AMD AMD Instinct™ MI300A
  • AMD AMD Instinct™ MI300X
  • AMD AMD Instinct™ MI325X
  • AMD AMD Instinct™ MI350X
  • AMD AMD Instinct™ MI355X
  • AMD AMD Instinct™ MI308X
  • AMD AMD Instinct™ MI250X

Classification

Weakness
  • CWE-822 Untrusted Pointer Dereference

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.