What’s Vulnerable › Vulnerabilities

CVE-2025-21188: Azure Network Watcher VM Extension Elevation of Privilege Vulnerability

• Severity: medium (CVSS 6.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-11 · updated 2026-06-17
• Weakness: CWE-59

Description

Azure Network Watcher VM Extension Elevation of Privilege Vulnerability

Affected products

• Microsoft Azure Network Watcher: before 1.4.3563.1 — fixed in 1.4.3563.1
• Microsoft Azure Network Watcher VM Extension: from 1.0.0.0 before 1.4.3563.1 — fixed in 1.4.3563.1

How to fix

Upgrade to a fixed version: Microsoft Azure Network Watcher 1.4.3563.1; Microsoft Azure Network Watcher VM Extension 1.4.3563.1. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21188

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