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CVE-2021-26400

Published: May 11, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
4.0CVSSMEDIUM
EPSS Score
0.2%
Top 86.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

NVD-CWE-noinfo

Affected Products

cpuamdHardware Firmware
AMD ProcessorsAMDHardware Firmware
AMDAdvanced Micro Devices Inc.Hardware Firmware
amdcommercialUSHardware Firmwareaka advanced micro devices
advanced micro devices inc.commercialUSHardware Firmwareaka amd

Exploitability

Official Patch Available

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1035
amd.com

Timeline

Published
May 11, 2022
Last Updated
Nov 21, 2024

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