CVE-2026-0438CWE-1072

A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory

Medium · published May 15, 2026

CVSS v4.0
5.4
EPSS
0%
Percentile
3.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.4 · MEDIUM
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
EPSS
0.00139 · 3.5th percentile
Weakness
CWE-1072 · Data Resource Access without Use of Connection Pooling
Published
2026-05-15T01:41Z
EPSS history
Timeline
  • 15 MAY 01:41Z
    A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory
    cvelistv5