CVE-2026-0438

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 11/100
Published: 2026-05-15 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Physical
AC: High
PR: High
UI: Active
S: X
AT: Present
VC: High
VI: High
VA: High

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.

Weakness Classification (1)

Bug Bounty Relevance

11 / 100

CVSS Score

5.4 / 10.0 v4.0
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 — Exploitation Probability

0.14%
Raw Score 0.001390
Percentile 3.2%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00139
2026-10-29
0.00139
2026-10-28
0.00139

Intelligence Sources

nvd ref →