Medium severity · published Aug 13, 2024
CVE-2021-26367
A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to…
6.0
CVSS
0.2%
EPSS
No
On KEV
Description
A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AA
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ PRO W6000 Series Graphics Cards · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ RX 6000 Series Graphics Cards · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ Embedded R1000 Series Processors · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ Embedded R2000 Series Processors · AMD
All versions, or not specified · source: vendor
Affected product
AA
AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
AMD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-26367
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-26367
Vendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html
Vendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html
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