What is the CVSS score of CVE-2025-21188?

CVE-2025-21188 has a CVSS 3.1 base score of 6.0 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Azure Network Watcher are 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.

How to fix or mitigate CVE-2025-21188?

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

Azure Network Watcher CVE-2025-21188

MEDIUM

Improper Link Resolution Before File Access (CWE-59)

2025-02-11 secure@microsoft.com

Microsoft Information Disclosure Azure Network Watcher

6.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.0 MEDIUM

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

Primary rating from NVD · only source for this CVE.

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

DescriptionCVE.org

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.