High severity · published Feb 11, 2026
CVE-2023-20548
A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or…
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
AMD Instinct™ MI210 · AMD
All versions, or not specified · source: vendor
AI
AMD Instinct™ MI250 · AMD
All versions, or not specified · source: vendor
AI
AMD Instinct™ MI300A · AMD
All versions, or not specified · source: vendor
AI
AMD Instinct™ MI300X · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ PRO VII · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ PRO W5000 Series Graphics Products · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ RX 5000 Series Graphics Products · AMD
All versions, or not specified · source: vendor
AR
AMD Radeon™ VII · AMD
All versions, or not specified · source: vendor
RP
Radeon Pro Vii Firmware · Amd
All versions, or not specified · source: NVD
RS
Radeon Software · Amd
before 25.q2; before 24.6.1 · source: NVD
RV
Radeon Vii Firmware · Amd
All versions, or not specified · source: NVD
RO
Rocm · Amd
before 6.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20548
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20548
Vendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html
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