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.
Published: 2026-05-15
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 19 May 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 15 May 2026 04:15:00 +0000

Type Values Removed Values Added
Title SMM Callout Handler Enables Execution of Untrusted Code

Fri, 15 May 2026 02:00:00 +0000

Type Values Removed Values 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.
Weaknesses CWE-1072
References
Metrics cvssV4_0

{'score': 5.4, 'vector': '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'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published:

Updated: 2026-05-19T21:01:36.151Z

Reserved: 2025-12-06T13:53:51.228Z

Link: CVE-2026-0438

cve-icon Vulnrichment

Updated: 2026-05-15T13:29:46.380Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-15T02:16:23.637

Modified: 2026-06-17T10:10:49.067

Link: CVE-2026-0438

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T04:00:12Z

Weaknesses