What is the CVSS score of CVE-2021-38647?

CVE-2021-38647 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 99.7%.

Is there a public PoC exploit available for CVE-2021-38647?

Yes, a public proof-of-concept exploit is available for CVE-2021-38647. Prioritise patching immediately. EPSS: 99.7%.

Is there a patch available for CVE-2021-38647?

Yes, a patch is available for CVE-2021-38647. Update the affected software to the latest version immediately.

System Center Operations Manager CVE-2021-38647

CRITICAL

2021-09-15 secure@microsoft.com

RCE Microsoft System Center Operations Manager Azure Stack Hub Azure Automation State Configuration Azure Automation Update Management Azure Diagnostics Lad Azure Open Management Infrastructure Azure Security Center Azure Sentinel Container Monitoring Solution Log Analytics Agent

9.8

CVSS 3.1 · Vendor: microsoft

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Vulnerability Assessment

Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: In CISA KEV with patch available.

Exploited in the wild (CISA KEV) Patch available 99.7% exploitation probability (EPSS)

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AnalysisAI

Open Management Infrastructure Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

Open Management Infrastructure Remote Code Execution Vulnerability Affected products include: Microsoft Azure Automation State Configuration, Microsoft Azure Automation Update Management, Microsoft Azure Diagnostics \(Lad\), Microsoft Azure Open Management Infrastructure, Microsoft Azure Security Center.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (microsoft) PRIMARY 9.8 CRITICAL

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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Sep 15, 2021 - 12:15 cve.org

CRITICAL 9.8

DescriptionCVE.org

Open Management Infrastructure Remote Code Execution Vulnerability

Threat Intelligence Overview

Threat Score

8.0/10

Composite threat intelligence

EPSS Score

99.7%

Top 0% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

CISA KEV

EPSS POC (2)

VulDB

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 CRITICAL

CISA KEV Yes

Public POC Yes

EPSS 99.7%

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

Immediate

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

High

Priority Score

234

Low Medium High Critical

KEV: +50

EPSS: +100

CVSS: +49

PoC: +20

Weaponized: +15

Threat intel: 0

Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:microsoft:azure_automation_state_configuration:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_automation_update_management:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_diagnostics_\(lad\):-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_open_management_infrastructure:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_security_center:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_sentinel:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:azure_stack_hub:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:container_monitoring_solution:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:log_analytics_agent:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:system_center_operations_manager:-:*:*:*:*:*:*:*

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References

Advisories & patches

PATCH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38647 ADVISORY https://vuldb.com/vuln/182662 REF https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38647 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38647

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