High severity · published Feb 13, 2024
CVE-2021-46757
Insufficient checking of memory buffer in ASP Secure OS may allow an attacker with a malicious TA to read/write to the ASP Secure OS kernel virtual address space potentially…
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Insufficient checking of memory buffer in ASP
Secure OS may allow an attacker with a malicious TA to read/write to the ASP
Secure OS kernel virtual address space potentially leading to privilege
escalation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
AMD Ryzen™ Embedded 5000 · AMD
various · source: vendor
AR
AMD Ryzen™ Embedded V2000 · AMD
various · source: vendor
RE
Ryzen Embedded 5600e Firmware · Amd
before embam4pi_1.0.0.0 · source: NVD
RE
Ryzen Embedded 5800e Firmware · Amd
before embam4pi_1.0.0.0 · source: NVD
RE
Ryzen Embedded 5900e Firmware · Amd
before embam4pi_1.0.0.0 · source: NVD
RE
Ryzen Embedded 5950e Firmware · Amd
before embam4pi_1.0.0.0 · source: NVD
RE
Ryzen Embedded R2312 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
RE
Ryzen Embedded R2314 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
RE
Ryzen Embedded V2516 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
RE
Ryzen Embedded V2546 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
RE
Ryzen Embedded V2718 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
RE
Ryzen Embedded V2748 Firmware · Amd
before embeddedpi-fp6_1.0.0.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46757
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46757
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
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