Low severity · published Jan 11, 2023
CVE-2023-20528
Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality
2.4
CVSS
0.2%
EPSS
No
On KEV
Description
Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E7
Epyc 7002 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7003 Firmware · Amd
before milanpi_1.0.0.5 · source: NVD
E7
Epyc 7232p Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7252 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7262 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7272 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7282 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 72f3 Firmware · Amd
before milanpi_1.0.0.5 · source: NVD
E7
Epyc 7302 Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7302p Firmware · Amd
before romepi_1.0.0.c · source: NVD
E7
Epyc 7313 Firmware · Amd
before milanpi_1.0.0.5 · source: NVD
E7
Epyc 7313p Firmware · Amd
before milanpi_1.0.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20528
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20528
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032
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