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System Center Operations Manager CVE-2026-20967

HIGH
Improper Input Validation (CWE-20)
2026-03-10 secure@microsoft.com
Information Disclosure Microsoft System Center Operations Manager
8.8
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate with valid credentials
  2. Delivery
    Send malicious request to SCOM API
  3. Exploit
    Bypass input validation
  4. Execution
    Escalate privileges to administrator
  5. Impact
    Execute arbitrary commands

Vulnerability Assessment

Weakness
CWE
CWE-20
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Exploitation Conditions

Valid SCOM user credentials required (PR:L). Attacker must have pre-existing authentication access to System Center Operations Manager network service. Remote access via SCOM API/web portal, default or misconfigured configurations sufficient.
Impact

CVSS 8.8 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network.
Exploit ScenarioDerived

A remote attacker could exploit this vulnerability to compromise the affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Privilege escalation in System Center Operations Manager via improper input validation enables authenticated network-based attackers to gain elevated system permissions. An attacker with valid credentials can exploit this weakness to compromise administrative access without user interaction. No patch is currently available for this high-severity vulnerability affecting System Center Operations Manager deployments.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:55 CVSS 8.8

Improper input validation in System Center Operations Manager allows an authorized attacker to elevate privileges over a network. [CVSS 8.8 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affected Packages

microsoft system_center_operations_manager_2019_10_19_10658_0 fix: System Center Operations Manager 2019 10.19.10658.0
microsoft system_center_operations_manager_2022_10_22_11951_0 fix: System Center Operations Manager 2022 10.22.11951.0
microsoft system_center_operations_manager_2025_10_25_10377_0 fix: System Center Operations Manager 2025 10.25.10377.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in microsoft

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Technical ContextAI · show details

Classified as CWE-20 (Improper Input Validation). Improper input validation in System Center Operations Manager allows an authorized attacker to elevate privileges over a network.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

Improper input validation in System Center Operations Manager allows an authorized attacker to elevate privileges over a network.

Executive ViewAI

Why It Matters

A high-severity privilege escalation vulnerability in System Center Operations Manager could allow authorized users to gain unauthorized administrative access across your infrastructure. Without an available patch, this represents an elevated risk to operational security and requires immediate compensating controls to prevent lateral movement and unauthorized system access.

Business Impact: High
Compensating Controls

Implement network segmentation restricting SCOM access to administrative VLANs only; require multi-factor authentication for all SCOM console access; disable remote SCOM access and enforce VPN requirements; apply WAF rules to filter malicious input patterns if SCOM is internet-exposed; limit SCOM service account permissions to minimum required; increase monitoring and alerting on SCOM authentication and administrative actions; restrict network access to SCOM ports (5723, 5724) to authorized hosts only; review and revoke unnecessary 'Operations Manager' and 'Report Server' role memberships immediately.

Threat Intelligence Overview

EPSS Score
0.1%
Top 75% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS 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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:microsoft:system_center_operations_manager:2019:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_1:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_1_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_2:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_2_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_3:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_3_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_4:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_4_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_5:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_5_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2019:update_rollup_6:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:update_rollup_1:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:update_rollup_1_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:update_rollup_2:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:update_rollup_2_hotfix:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2022:update_rollup_3:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2025:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:system_center_operations_manager:2025:update_rollup_1:*:*:*:*:*:*

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Same weakness CWE-20 – Improper Input Validation

View all
CVE-2021-44228 CRITICAL POC
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CVE-2024-3400 CRITICAL POC
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CVE-2022-47966 CRITICAL POC
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CVE-2023-22515 CRITICAL POC
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CVE-2009-0927 HIGH POC
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CVE-2017-9791 CRITICAL POC
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CVE-2017-15944 CRITICAL POC
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CVE-2019-0604 CRITICAL POC
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Same technique Information Disclosure

View all
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9.8
CVE-2021-34523 CRITICAL POC
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CVE-2013-2251 CRITICAL POC
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CVE-2017-5638 CRITICAL POC
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CVE-2025-24813 CRITICAL POC
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CVE-2025-68613 HIGH POC
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CVE-2015-1701 HIGH POC
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CVE-2017-0147 HIGH POC
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References

Advisories & patches
ADVISORY https://vuldb.com/?id.349977 REF https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20967

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