CVE-2026-26117 — HIGH (7.8)

Q: What is CVE-2026-26117?

CVE-2026-26117 is a vulnerability with a CVSS score of 7.8 (HIGH). Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.

Q: How severe is CVE-2026-26117?

CVE-2026-26117 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-26117?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Arc Enabled Servers Azure Connected Machine Agent.

Vulnerability Description

Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Arc Enabled Servers Azure Connected Machine Agent	>= 1.0.0, < 1.61

Related Weaknesses (CWE)

CWE-288

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26117Vendor Advisory

FAQ

What is CVE-2026-26117?

CVE-2026-26117 is a vulnerability with a CVSS score of 7.8 (HIGH). Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.

How severe is CVE-2026-26117?

CVE-2026-26117 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-26117?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Arc Enabled Servers Azure Connected Machine Agent.