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Windows CVE-2020-1472

MEDIUM
2020-08-17 secure@microsoft.com
5.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Impact

CVSS 5.5. EPSS 94.4% (very high exploitation probability). KEV-listed (actively exploited in the wild). Public PoC/exploit available. Vendor patch available.

Exploit ScenarioDerived

A low-privileged attacker could exploit this flaw in the affected application to escalate privileges, gaining administrative or root-level access to the system.

Act Now Prioritize within 24-48h. Why: In CISA KEV with patch available.
Exploited in the wild (CISA KEV) Patch available 94.4% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 26, 2026

A privilege escalation vulnerability (CVSS 5.5). Risk factors: actively exploited (KEV-listed), EPSS 94% exploitation probability, public PoC available. Vendor patch is available.

Earlier versions of this analysis (1)
v1 Mar 26, 2026 - 11:19 CVSS 5.5

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 att

RemediationAI

Apply the vendor-supplied patch immediately. This is CISA KEV-listed — federal agencies must remediate per BOD 22-01 deadlines. Given the high exploitation probability, prioritize remediation over other vulnerabilities.

Affected ProductsAI

Unspecified product

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Vulnerability type: privilege escalation.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

5
Added to CISA KEV
Feb 23, 2026 - 20:30 cisa
CISA KEV
EUVD Exploitation Confirmed
Feb 23, 2026 - 20:30 euvd
EUVD KEV
PoC Detected
Feb 23, 2026 - 20:30 vuln.today
Public exploit code
Patch released
Feb 23, 2026 - 20:30 nvd
Patch available
CVE Published
Aug 17, 2020 - 19:15 nvd
MEDIUM 5.5

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CVE-2020-1472 presents moderate security risk rated CVSS 5.5. Exploitation could compromise the security of affected deployments. This vulnerability is actively exploited in the wild (KEV-listed). A patch is available and should be applied during regular vulnerability management.

Business Impact: High
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

Threat Score
8.9/10
Composite threat intelligence
EPSS Score
94.4%
Top 0% exploitable
EUVD KEV
Listed
EU Exploited Vulnerability
Threat Intel
8
1 sources
Exploit
POC
Public exploit code exists
Data Quality
7 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV Yes
Public POC Yes
EPSS 94.4%
Patch available Yes
Active threat Yes
Deciding rule
In CISA KEV with patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
Active
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

202
Low Medium High Critical
KEV: +50
EPSS: +94
CVSS: +28
PoC: +20
Weaponized: 0
Threat intel: +10
Gov advisory: 0
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Threat IntelligenceMISP

Threat Actors
Wizard Spider Earth Lusca menuPass Dragonfly MuddyWater FIN7 CosmicBeetle
ATT&CK Techniques (observed)
Sources: MITRE ATT&CK, MISP Galaxies (CC0), Metasploit/Nuclei

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