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CVE-2021-46768

Published: Jan 10, 2023Updated: Apr 9, 2025 Sources: CVE List NVD BDUCWE-125
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.2%
Top 93.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a denial of service.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

romepi firmwareamdHardware Firmware
milanpi firmwareamdHardware Firmware
SR635Lenovo Group LimitedHardware Firmware
SR655Lenovo Group LimitedHardware Firmware
SR645Lenovo Group LimitedHardware Firmware
amdcommercialUSHardware Firmwareaka advanced micro devices
lenovo group limitedcommercialCNHardware Firmwareaka lenovo
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032
amd.com
https://vuldb.com/ru/?id.217992
vuldb.com
https://nvd.nist.gov/vuln/detail/CVE-2021-46768
nvd.nist.gov
and 2 more references View all →

Timeline

Published
Jan 10, 2023
Last Updated
Apr 9, 2025

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