What is CVE-2019-0811?

CVE-2019-0811 is a high-severity vulnerability in Microsoft Windows Server, classified under CWE-19. CVSS score: 7.5/10. Published 2019-07-15.

How severe is CVE-2019-0811?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Microsoft Windows Server

CVE-2019-0811

A denial of service vulnerability exists in Windows DNS Server when it fails to properly handle DNS queries, aka 'Windows DNS Server Denial of Service Vulnerability'.

Published 2019-07-15 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.045 (91.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000

Affected products

Microsoft Windows Server — versions 2012 R2, 2012 R2 (Core installation), 2016
Microsoft Windows Server 2012 — versions r2
Microsoft Windows Server 2016 — versions 1803, 1903
Microsoft Windows Server 2019
Microsoft Windows Server, Version 1903 (Server Core Installation) — versions unspecified

Weakness classification (CWE)

CWE-19

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0811 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2019-0811?: CVE-2019-0811 is a high-severity vulnerability in Microsoft Windows Server, classified under CWE-19. CVSS score: 7.5/10. Published 2019-07-15.
How severe is CVE-2019-0811?: High severity. CVSS v3 base score is 7.5 out of 10.