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CVE-2026-0438

24
FAUCET Score

A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker could, with active user interaction and under high complexity and present preconditions, trigger execution of attacker-controlled code in SMM, potentially compromising the system’s confidentiality, integrity, and availability.

First published: May 15, 2026Last modified: May 19, 2026

Impacted Technologies

VendorProductVersion(s)CPE
AMDAMD EPYC™ 4004 Series Processors
Range not provided by sourceCNA affecteddefault affected
AMDAMD EPYC™ 4005 Series Processors
Range not provided by sourceCNA affecteddefault affected
AMDAMD Ryzen™ 7000 Series Desktop Processors (Formerly Codenamed "Raphael")
Range not provided by sourceCNA affecteddefault affected
AMDAMD Ryzen™ 7000 Series Desktop Processors
Range not provided by sourceCNA affecteddefault affected
AMDAMD Ryzen™ 7040 Series Mobile Processors With Radeon™ Graphics
Range not provided by sourceCNA affecteddefault affected

CVSS Data

CVSS version used by this source: 4.0

5.4MEDIUM

CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
ACTIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 25th percentile among its peer group of 9 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

amd.com / en/resources/product-security/bulletin/AMD-SB-3030.html
amd.com / en/resources/product-security/bulletin/AMD-SB-4017.html