What is CVE-2019-3974?

CVE-2019-3974 is a high-severity vulnerability in Microsoft Windows. CVSS score: 8.1/10. Published 2019-08-15.

How severe is CVE-2019-3974?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Microsoft Windows

CVE-2019-3974

Nessus 8.5.2 and earlier on Windows platforms were found to contain an issue where certain system files could be overwritten arbitrarily, potentially creating a denial of service condition.

Published 2019-08-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.2th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: +0.000

Affected products

Microsoft Windows
Tenable Nessus
Tenable Nessus — versions All versions prior to 8.6.0

References

www.tenable.com/security/tns-2019-05 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-3974?: CVE-2019-3974 is a high-severity vulnerability in Microsoft Windows. CVSS score: 8.1/10. Published 2019-08-15.
How severe is CVE-2019-3974?: High severity. CVSS v3 base score is 8.1 out of 10.