CVE-2026-0438
Intel System Management Mode (SMM) Callout Code Execution Vulnerability
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.
INFO
Published Date :
May 15, 2026, 2:16 a.m.
Last Modified :
June 17, 2026, 10:10 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-0438
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | b58fc414-a1e4-4f92-9d70-1add41838648 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update system firmware to the latest version.
- Apply vendor-provided security patches for SMM handlers.
- Review and restrict SMM handler access controls.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-0438.
| URL | Resource |
|---|---|
| https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html | |
| https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-0438 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-0438
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-0438 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-0438 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'AMD', 'product': 'AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics', 'versions': [{'status': 'unaffected', 'version': 'PhoenixPI-FP8-FP7_1.2.0.0f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics', 'versions': [{'status': 'unaffected', 'version': 'DragonRangeFL1PI 1.0.0.3k'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 7000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI 1.0.0.d'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 9000HX Series Processors', 'versions': [{'status': 'unaffected', 'version': 'FireRangeFL1PI 1.0.0.0d'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ AI 300 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'StrixKrackanPI-FP8_1.1.0.0e'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors', 'versions': [{'status': 'unaffected', 'version': 'StormPeakPI-SP6 1.0.0.1m'}, {'status': 'unaffected', 'version': 'StormPeakPI-SP6_1.1.0.0k'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 7000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI 1.1.0.3f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 7000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.2.0.3i'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 8000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI 1.1.0.3f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 8000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.2.0.3i'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 9000 Series Desktop Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.2.0.3i'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics', 'versions': [{'status': 'unaffected', 'version': 'PhoenixPI-FP8-FP7_1.2.0.0f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ AI Max 300 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'StrixHaloPI-FP11_1.0.0.2a'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Z1 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'PhoenixPI-FP8-FP7_1.2.0.0f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Z1 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'PhoenixPI-FP8-FP7_1.2.0.0f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Z2 Series Processors Extreme', 'versions': [{'status': 'unaffected', 'version': 'StrixKrackanPI-FP8_1.1.0.2d'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Z2 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'PhoenixPI-FP8-FP7_1.2.0.0f'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors', 'versions': [{'status': 'unaffected', 'version': 'ShimadaPeakPI-SP6 1.0.0.1c'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Threadripper™ 7000 Processors', 'versions': [{'status': 'unaffected', 'version': 'ShimadaPeakPI-SP6 1.0.0.1c'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Threadripper™ 9000 Processors', 'versions': [{'status': 'unaffected', 'version': 'ShimadaPeakPI-SP6 1.0.0.1c'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Threadripper™ PRO 9000 WX-Series Processors', 'versions': [{'status': 'unaffected', 'version': 'ShimadaPeakPI-SP6 1.0.0.1c'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael")', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.3.0.0'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix")', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.3.0.0'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ 9000 Series Desktop Processors (formerly codenamed "Granite Ridge")', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.3.0.0'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Embedded 9000 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'EmbeddedAM5PI 1.0.0.5'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Embedded 8000 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'EmbeddedPhoenixPI-FP7r2_1.0.0.4'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD Ryzen™ Embedded 7000 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'EmbeddedAM5PI 1.0.0.5'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD EPYC™ 4004 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI 1.0.0.d / ComboAM5PI 1.1.0.3f / ComboAM5PI_1.2.0.3i'}], 'defaultStatus': 'affected'}, {'vendor': 'AMD', 'product': 'AMD EPYC™ 4005 Series Processors', 'versions': [{'status': 'unaffected', 'version': 'ComboAM5PI_1.2.0.3i'}], 'defaultStatus': 'affected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-0438', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-15T13:17:40.357741Z'} -
New CVE Received by [email protected]
May. 15, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CWE CWE-1072 Added Reference https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html Added Reference https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html