CVE Tools
Sign in

CVE-2021-26337

Published: Nov 16, 2021Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-noinfo
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.2%
Top 86.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA read from invalid DRAM address to SRAM resulting in SMU not servicing further requests.

CVSS Vector Breakdown

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

Weaknesses

NVD-CWE-noinfo

Affected Products

Ryzen™ SeriesAMDHardware Firmware
Athlon™ SeriesAMDHardware Firmware
epyc 7003 firmwareamdHardware Firmware
epyc 7002 firmwareamdHardware Firmware
epyc 72f3 firmwareamdHardware Firmware
amdcommercialUSHardware Firmwareaka advanced micro devices
and 109 more affected products View all →

Exploitability

Official Patch Available

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
amd.com

Timeline

Published
Nov 16, 2021
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-26337 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