Home/CVE/Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious
CVE

CVE-2021-26370

Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious

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.

HIGH · CVSS 7.1 EPSS 0.00126
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-20Improper Input Validation
▤

Affected Products & Versions

49
amd epyc 7763 firmware< milanpi-sp3_1.0.0.4
amd epyc 7713p firmware< milanpi-sp3_1.0.0.4
amd epyc 7713 firmware< milanpi-sp3_1.0.0.4
amd epyc 7663 firmware< milanpi-sp3_1.0.0.4
amd epyc 7643 firmware< milanpi-sp3_1.0.0.4
amd epyc 75f3 firmware< milanpi-sp3_1.0.0.4
amd epyc 7543p firmware< milanpi-sp3_1.0.0.4
amd epyc 7543 firmware< milanpi-sp3_1.0.0.4
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · psirt@amd.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 May 2022 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021Vendor Advisory
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