CVE-2018-20404 — ETK_E900.sys, a SmartETK driver for VIA Technologies EPIA-E900 system board, is vulnerable to denial of service attack via IOCTL 0x9C402048, which calls memmove and constantly fails on an arbitrary (uncontrollable) address, resulting in an eternal hang or a BSoD

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HIGH

ETK_E900.sys, a SmartETK driver for VIA Technologies EPIA-E900 system board, is vulnerable to denial of service attack via IOCTL 0x9C402048, which calls memmove and constantly fails on an arbitrary (uncontrollable) address, resulting in an eternal hang or a BSoD

Published Dec 26, 2018

7.5

HIGH

CVSS 3.0

EPSS 1.48%

Description

ETK_E900.sys, a SmartETK driver for VIA Technologies EPIA-E900 system board, is vulnerable to denial of service attack via IOCTL 0x9C402048, which calls memmove and constantly fails on an arbitrary (uncontrollable) address, resulting in an eternal hang or a BSoD.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.48% 0.01477

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01477

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.48% (0.01477)	72.92th	v5 (v2026.06.15)
Sep 20, 2026	1.48% (0.01477)	72.72th	v5 (v2026.06.15)
Jul 20, 2024	0.11% (0.00114)	45.41th	v3 (v2023.03.01)
Jul 10, 2024	0.11% (0.00114)	45.37th	v3 (v2023.03.01)
Mar 7, 2023	0.11% (0.00114)	43.31th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00518)	11.68th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00518)	0.00th	v1

Weaknesses (1)

CWE-20

Improper Input Validation

References (1)

https://downwithup.github.io/CVEPosts.html
x_refsource_MISCExploitThird Party Advisory

Link	Providers	Tags
https://downwithup.github.io/CVEPosts.html		x_refsource_MISCExploitThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Dec 26, 2018

Updated Aug 5, 2024

Reserved Dec 23, 2018

Link CVE-2018-20404

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-20404

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-20404