Improper input validation in Viatech Epia-E900

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.015 (71.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-20404?
CVE-2018-20404 is a high-severity vulnerability in Viatech Epia-E900, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-12-26.
How severe is CVE-2018-20404?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-20404 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.