Arc Enabled Servers - Azure Connected Machine Agent Elevation of Privilege Vulnerability
Priority LOW 37CWE-288Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00482 41st percentileScored 2026-11-07
Fix Fixed Arc Enabled Servers - Azure Connected Machine Agent (Microsoft): 1.61
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Arc Enabled Servers - Azure Connected Machine Agent | 1.0.0 to before 1.61 | 1.61 | Patch available | CNA |
- Arc Enabled Servers - Azure Connected Machine Agent VendorMicrosoft Affected 1.0.0 to before 1.61 Fixed in 1.61 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:arc_enabled_servers_azure_connected_machine_agent:*:*:*:*:*:*:*:* | 1.0.0 to before 1.61 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:arc_enabled_servers_azure_connected_machine_agent:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.61 Vulnerable ·Microsoft
Remediation
- Fix · CNA Arc Enabled Servers - Azure Connected Machine Agent (Microsoft) Fixed in 1.61
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Unlikely
| Product | Status | Plan or fix |
|---|---|---|
| Arc Enabled Servers - Azure Connected Machine Agent | Fixed | 1.61 · Security Update - Windows |
| Arc Enabled Servers - Azure Connected Machine Agent | Fixed | 1.61 · Security Update - Linux |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-26117
- 2026-10-03 Alias added: GHSA-76jf-fgc3-37rx
References
Sources
- CVE-2026-26117 · CVE Program
- CVE-2026-26117 · NVD
- FIRST EPSS
- GHSA-76jf-fgc3-37rx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-26117 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences