How to fix CVE-2025-21188?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Is Azure Network Watcher affected by CVE-2025-21188?

CVE-2025-21188 presents moderate security risk rated CVSS 6.0. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.

CVE-2025-21188

MEDIUM

2025-02-11 [email protected]

Microsoft Information Disclosure Azure Network Watcher

6.0

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:26 vuln.today

Patch Released

Mar 28, 2026 - 18:26 nvd

Patch available

CVE Published

Feb 11, 2025 - 18:15 nvd

MEDIUM 6.0

DescriptionNVD

Azure Network Watcher VM Extension Elevation of Privilege Vulnerability

AnalysisAI

Azure Network Watcher VM Extension Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-59. Azure Network Watcher VM Extension Elevation of Privilege Vulnerability Affected products include: Microsoft Azure Network Watcher.

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.

CVE-2025-21188 vulnerability details – vuln.today

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CVE-2025-21188

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code