CVE-2021-26370

2022-05-0600:00:00

CWE-20

AMD

www.cve.org

7.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.8%

JSON

Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.

CNA Affected

[
  {
    "product": "2nd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "RomePI-SP3_1.0.0.C",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "3rd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "MilanPI-SP3_1.0.0.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021