Strix
26.1K

CVE-2026-0438

MEDIUMCVSS 5.4/10EPSS 0.14%

Last modified

CVE-2026-0438 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 4.0
5.4/10

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

EPSS Probability
0.14%

3.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
AMDAMD Ryzen™ 7040 Series Mobile Processors with Radeon™ GraphicsAll versions
AMDAMD Ryzen™ 7045 Series Mobile Processors with Radeon™ GraphicsAll versions
AMDAMD Ryzen™ 7000 Series Desktop ProcessorsAll versions
AMDAMD Ryzen™ 9000HX Series ProcessorsAll versions
AMDAMD Ryzen™ AI 300 Series ProcessorsAll versions
AMDAMD Ryzen™ Threadripper™ PRO 7000 WX-Series ProcessorsAll versions
AMDAMD Ryzen™ 8000 Series Desktop ProcessorsAll versions
AMDAMD Ryzen™ 9000 Series Desktop ProcessorsAll versions
AMDAMD Ryzen™ 8040 Series Mobile Processors with Radeon™ GraphicsAll versions
AMDAMD Ryzen™ AI Max 300 Series ProcessorsAll versions
AMDAMD Ryzen™ Z1 Series ProcessorsAll versions
AMDAMD Ryzen™ Z2 Series Processors ExtremeAll versions
AMDAMD Ryzen™ Z2 Series ProcessorsAll versions
AMDAMD Ryzen™ Threadripper™ 7000 ProcessorsAll versions
AMDAMD Ryzen™ Threadripper™ 9000 ProcessorsAll versions
AMDAMD Ryzen™ Threadripper™ PRO 9000 WX-Series ProcessorsAll versions
AMDAMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael")All versions
AMDAMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix")All versions
AMDAMD Ryzen™ 9000 Series Desktop Processors (formerly codenamed "Granite Ridge")All versions
AMDAMD Ryzen™ Embedded 9000 Series ProcessorsAll versions
AMDAMD Ryzen™ Embedded 8000 Series ProcessorsAll versions
AMDAMD Ryzen™ Embedded 7000 Series ProcessorsAll versions
AMDAMD EPYC™ 4004 Series ProcessorsAll versions
AMDAMD EPYC™ 4005 Series ProcessorsAll versions

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-0438?
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.
How severe is CVE-2026-0438?
CVE-2026-0438 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-0438?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-0438?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST