CVE Tools
Sign in

CVE-2021-46763

Published: May 9, 2023Updated: Jan 28, 2025 Sources: CVE List NVDCWE-787
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.5%
Top 61.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

epyc 72f3 firmwareamdHardware Firmware
epyc 7313 firmwareamdHardware Firmware
epyc 7313p firmwareamdHardware Firmware
epyc 7343 firmwareamdHardware Firmware
epyc 7373x firmwareamdHardware Firmware
amdcommercialUSHardware Firmwareaka advanced micro devices
and 45 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

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001
amd.com

Timeline

Published
May 9, 2023
Last Updated
Jan 28, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-46763 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows