CVE-2020-1472 (GCVE-0-2020-1472)
Vulnerability from cvelistv5 – Published: 2020-08-17 19:13 – Updated: 2025-10-21 23:35Title
Netlogon Elevation of Privilege Vulnerability
Summary
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.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-30 18:45 UTC
CWE
- Elevation of Privilege
- CWE-noinfo Not enough information
Assigner
References
18 references
Impacted products
14 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows Server version 2004 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server, version 1909 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server, version 1903 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2008 R2 Service Pack 1 |
Affected:
6.1.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) |
Affected:
6.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server version 20H2 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:* |
Date Public
2020-08-11 07:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 93e8fd1a-7138-4b61-878c-be09283b4e04
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: Microsoft Netlogon Privilege Escalation Vulnerability | Affected: Microsoft / Netlogon | Description: 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. | Required action: Apply updates per vendor instructions. | Due date: 2022-05-03 | Known ransomware campaign use (KEV): Known | Notes (KEV): Reference CISA's ED 20-04 (https://www.cisa.gov/news-events/directives/ed-20-04-mitigate-netlogon-elevation-privilege-vulnerability-august-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-04. https://nvd.nist.gov/vuln/detail/CVE-2020-1472
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-330 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Netlogon |
| Due Date | 2022-05-03 |
| Date Added | 2021-11-03 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Netlogon Privilege Escalation Vulnerability |
| Knownransomwarecampaignuse | Known |
References
Created: 2026-10-02 08:10 CEST
| Updated: 2026-10-02 08:10 CEST
ENISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ddc41a81-f149-4ab7-92bb-25c77073d71c
Exploited: Yes
Timestamps
First Seen: 2025-01-23
Asserted: 2025-01-23
Scope
Notes: Affected: Microsoft / Netlogon (ZeroLogon) | Description: Elevation of privilege vulnerability that exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). | Patched since: 2020/08/11 | Exploitation type: ransomware | Origin source: CNW
Evidence
Type: Csirt Report
Signal: Confirmed Compromise
Confidence: 75%
Source: enisa-cnw-kev
Details
| Cwes | |
|---|---|
| Euvd | EUVD-2020-12346 |
| Notes | |
| Catalog | ENISA / EU CSIRTs Network (CNW) KEV JSON |
| Product | Netlogon (ZeroLogon) |
| Datereported | 2025/01/23 |
| Originsource | CNW |
| Patchedsince | 2020/08/11 |
| Vendorproject | Microsoft |
| Exploitationtype | ransomware |
| Vulnerabilityname | |
| Threatactorsexploiting |
References
Created: 2026-10-02 08:52 CEST
| Updated: 2026-10-02 08:52 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 00e4b229-613a-4c48-ae51-fa30fbaf631b
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: Netlogon Elevation of Privilege Vulnerability | Affected: Microsoft / Windows Server version 2004, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server, version 1909 (Server Core installation), Windows Server, version 1903 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server version 20H2 | CVSS: 5.5 (MEDIUM) | EPSS: 0.99389 | Used in malware: yes | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Confirmed Compromise
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Netlogon Elevation of Privilege Vulnerability |
| Cve Id | CVE-2020-1472 |
| Vendor | Microsoft |
| Ghsa Id | None |
| Product | Windows Server version 2004, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server, version 1909 (Server Core installation), Windows Server, version 1903 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server version 20H2 |
| Added Date | 2021-11-03T00:00:00.000Z |
| Cvss Score | 5.5 |
| Epss Score | 0.99389 |
| Previous Ids | |
| Cvss Severity | MEDIUM |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.9994 |
| Used In Malware | yes |
| Vulnerability Id | CVE-2020-1472 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-10-02 09:10 CEST
| Updated: 2026-10-02 09:10 CEST
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"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202012-24"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://packetstormsecurity.com/files/159190/Zerologon-Proof-Of-Concept.html"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://www.synology.com/security/advisory/Synology_SA_20_21"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://packetstormsecurity.com/files/160127/Zerologon-Netlogon-Privilege-Escalation.html"
}
],
"title": "Netlogon Elevation of Privilege Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2020-1472",
"datePublished": "2020-08-17T19:13:05.000Z",
"dateReserved": "2019-11-04T00:00:00.000Z",
"dateUpdated": "2025-10-21T23:35:37.656Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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