CVE-2021-26364
MEDIUM
5.5
CVSS Score
Published: May 11, 2022 at 04:25 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
89 products affected across 1 vendorEpyc 7713P FirmwareEpyc 7663 FirmwareEpyc 7413 Firmware
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
Description
Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which could result in an exception handling leading to a potential denial of service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7232p (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7252 (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7262 (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7272 (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7282 (same device)
v < milanpi-sp3_1.0.0.7
Affected range stops below milanpi-sp3_1.0.0.7, so it looks safe — our inference, not a vendor statement
amd-epyc-72f3 (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7302 (same device)
v < romepi-sp3_1.0.0.d
Affected range stops below romepi-sp3_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7302p (same device)
v < milanpi-sp3_1.0.0.7
Affected range stops below milanpi-sp3_1.0.0.7, so it looks safe — our inference, not a vendor statement
amd-epyc-7313p (same device)
v < milanpi-sp3_1.0.0.7
Affected range stops below milanpi-sp3_1.0.0.7, so it looks safe — our inference, not a vendor statement
amd-epyc-7343 (same device)
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-1028CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-119
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