Azure Network Watcher VM Extension Elevation of Privilege Vulnerability
Priority LOW 30CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Azure Network Watcher VM Extension Elevation of Privilege Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00705 53rd percentileScored 2026-11-07
Fix Fixed Azure Network Watcher VM Extension (Microsoft): 1.4.3563.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Azure Network Watcher VM Extension (Microsoft) Fixed in 1.4.3563.1
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| Azure Network Watcher VM Extension | Fixed | 1.4.3563.1 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21188
- 2026-10-03 Alias added: GHSA-rxc7-mfvv-r2xp
More Microsoft Azure Network Watcher vulnerabilities
- TI-2023-18544 Azure Network Watcher VM Agent Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2025-21188 · CVE Program
- CVE-2025-21188 · NVD
- FIRST EPSS
- GHSA-rxc7-mfvv-r2xp · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21188 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences