CVE-2021-26384
HIGH
7.8
CVSS Score
Published: July 14, 2022 at 07:28 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
106 products affected across 1 vendorRyzen 5 5600U FirmwareRyzen 5 5600HS FirmwareRyzen 5 5600H Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
Description
A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when triggering an SMI resulting in a potential loss of resources.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < comboam4v2_pi_1.2.0.6c
Affected range stops below comboam4v2_pi_1.2.0.6c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-2200u (same device)
v < comboam4v2_pi_1.2.0.6c
Affected range stops below comboam4v2_pi_1.2.0.6c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-2300u (same device)
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125CWE-787
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