CVE-2020-1472

What it is

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.

In the wild

CISA lists this as exploited in real attacks. Treat as urgent.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2019-11-04 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2020-08-17 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2021-11-03 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
4. 2022-05-03 Remediation deadlineCISA's due date for federal agencies to fix it
5. 2026-06-17 03:01 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
• Exploit odds: 99.4% in the next 30 days (EPSS).
• Severity: 5.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-08-17 19:15 UTC

Last modified

2026-06-17 03:01 UTC

Added to CISA KEV

2021-11-03

Exploit probability

99.4% · EPSS, next 30 days

Record status

Analyzed

Affected

• Microsoft Windows Server 1903
• Microsoft Windows Server 1909
• Microsoft Windows Server 2004
• Microsoft Windows Server 2008 r2
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 r2
• Microsoft Windows Server 2016
• Microsoft Windows Server 2019

Attack profile CVSS 3.1 · 5.5

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-1472.md and follow it. Check whether this project is affected by CVE-2020-1472. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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