CVE-2020-1350Microsoft Windows DNS Server Remote Code Execution Vulnerability

A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.

10.0 CRITICALEPSS 96.72%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 03:01 UTC

OverviewCVSS details

10.0CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Jul 14, 2020
Assigner: microsoft

Affected

Windows Server (Microsoft)

Versions: 2019 · 2019 (Core installation)

+3 more products →

Exploitation

Public exploit: None listed
CISA KEV: Listed · Nov 3, 2021
KEV due date: May 3, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 7

96.72%chance of exploitation in 30 days

Higher than 99.88% of CVEs

CVSS 3.1 · NVD

10.0Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

10.0High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
10.0	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0	HIGH	2.0NVD	AV:N/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due May 3, 2022

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Details

CVE ID: CVE-2020-1350
Status: Analyzed
Assigner (CNA): microsoft
Published: Jul 14, 2020
Last modified: 2026-06-17 03:01 UTC
Weaknesses: CWE-20

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 08:38 UTC.