Microsoft Security Update Guide · Power Platform
Microsoft Power Automate Desktop Elevation of Privilege Vulnerability
Published
What does this mean?
- Elevation of Privilege. An attacker can gain more rights than they should have, for example admin rights.
- It can be exploited with access to the device itself, with an ordinary user account and without any user action.
- CVSS 7.0 out of 10: high. Microsoft rates it Important.
- No attacks reported; Microsoft expects exploitation to be less likely.
- What should you do? Install the security update for the version you run (or a later cumulative update):
- Power Automate agent for virtual desktops: KBRelease Notes
2.71.115.26224 - Power Automate for Desktop: KBRelease Notes
2.71.115.26224
- Power Automate agent for virtual desktops: KBRelease Notes
Relative path traversal in Power Automate allows an authorized attacker to elevate privileges locally.
Key facts
Released
8 sep 2026
Impact
Elevation of Privilege
Max severity
Important
Weakness
CVSS 3.1
7.0 / 6.1 (base / temporal)
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CPublicly disclosed
No
Exploited
No
Exploitability assessment
Exploitation Less Likely
Customer action required
Yes
Links
CVSS metrics
| Base score metrics | |
|---|---|
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity | High |
| Availability | High |
| Temporal score metrics | |
| Exploit Code Maturity | Unproven |
| Remediation Level | Official Fix |
| Report Confidence | Confirmed |
Affected products and updates
| Product | Update | Build |
|---|---|---|
| Power Automate agent for virtual desktops | KBRelease Notes · Security Update | 2.71.115.26224 |
| Power Automate for Desktop | KBRelease Notes · Security Update | 2.71.115.26224 |
FAQ
- According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
- Successful exploitation of this vulnerability requires an attacker to win a race condition.
- What action should customers take to address this vulnerability?
- Customers should update Power Automate for desktop to the latest available version. Customers who have the Power Automate agent for virtual desktops installed on Citrix or another machine must also update that agent to version 2.71.115.26224 or later.
- What privileges could be gained by an attacker who successfully exploited this vulnerability?
- An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Revisions
| Version | Date | Note |
|---|---|---|
| 1 | 8 sep 2026 | Information published. |
This is in the weekly digest for week 37 · What changed this week? →
View at Microsoft → ← All security advisories
Source: Microsoft Security Update Guide. 365Fanatic is not affiliated with Microsoft.
