Medium severity · published May 10, 2022
CVE-2021-26352
Insufficient bound checks in System Management Unit (SMU) PCIe Hot Plug table may result in access/updates from/to invalid address space that could result in denial of service
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
Insufficient bound checks in System Management Unit (SMU) PCIe Hot Plug table may result in access/updates from/to invalid address space that could result in denial of service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
R3
Ryzen 3 5300g Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 5300ge Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 2600 Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 2600x Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 2700 Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 2700x Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 3600 Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 3600x Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5600g Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5600ge Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5600x Firmware · Amd
All versions, or not specified · source: NVD
R7
Ryzen 7 3700x Firmware · Amd
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-26352
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-26352
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
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