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Findings

CVE-2020-1472

Microsoft Netlogon Privilege Escalation Vulnerability

Published Aug 17, 2020 · updated Jun 16, 2026 · microsoft windows server 1903

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.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 17, 2020 · Catalog

    Detected

    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

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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

Required action

Apply updates per vendor instructions.

CISA due date May 3, 2022

Affected

  • cpe canonical/ubuntu linux14.04
  • cpe fedoraproject/fedora31
  • cpe microsoft/windows server 1903version unspecified
  • cpe microsoft/windows server 1909version unspecified
  • cpe microsoft/windows server 2004version unspecified
  • cpe microsoft/windows server 2008r2
  • cpe microsoft/windows server 2012version unspecified
  • cpe microsoft/windows server 2012r2
  • cpe microsoft/windows server 2016version unspecified
  • cpe microsoft/windows server 2019version unspecified
  • cpe opensuse/leap15.1
  • cpe synology/directory serverversion unspecified
  • vendor Microsoft Netlogonversion unspecified

Sources

  • CISA KEVCVE-2020-1472

    Microsoft's Netlogon Remote Protocol (MS-NRPC) contains a privilege escalation vulnerability when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller. An attacker who successfully exploits the vulnerability could run a specially crafted application on a device on the network. The vulnerability is also known under the moniker of Zerologon.

    cisa.gov
  • CVE.orgCVE-2020-1472

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2020-1472

    30-day exploitation probability 99.4%

    first.org
  • Exploit Database49071

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit Modulesauxiliary_admin/dcerpc/cve_2020_1472_zerologon

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-2020-1472

    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

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/159190/Zerologon-Proof-Of-Concept.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • Packet Storm Securityhttp://packetstormsecurity.com/files/160127/Zerologon-Netlogon-Privilege-Escalation.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References