CVE-2021-26355

2023-01-1020:56:37

AMD

www.cve.org

cve-2021-26355

insufficient fencing

system management unit

smu

invalid message port

potential denial-of-service

5.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.2%

JSON

Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "AGESA",
    "platforms": [
      "x86"
    ],
    "product": "3rd Gen EPYC",
    "vendor": "AMD",
    "versions": [
      {
        "status": "affected",
        "version": "various "
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032