---
title: "CVE-2026-105791: Microsoft UFO - Command Injection"
description: "Microsoft UFO < 3.0.9 contains a command injection caused by improper validation of the bash_command parameter in CommandLineExecutor, letting attackers execute arbitrary code as the desktop user, exploit requires user to run affected agent workflow."
url: https://panop.io/threat-heartbeat/CVE-2026-105791/
---

# CVE-2026-105791 Microsoft UFO - Command Injection

Microsoft UFO < 3.0.9 contains a command injection caused by improper validation of the bash\_command parameter in CommandLineExecutor, letting attackers execute arbitrary code as the desktop user, exploit requires user to run affected agent workflow.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.62% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-105791)

## Details

Type

Command Injection

Impact

Remote Code Execution, Data Tampering, Information Disclosure

CVSS vector

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

Published

6 October 2026

Updated

15 October 2026

Weakness

[CWE-88](https://cwe.mitre.org/data/definitions/88.html)

## Vendor fix

Update to version 3.0.9 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-105791](https://nvd.nist.gov/vuln/detail/CVE-2026-105791)
- [https://github.com/microsoft/UFO/commit/3e1262fc091eb319253b7a1338b63f62cc6c82b1](https://github.com/microsoft/UFO/commit/3e1262fc091eb319253b7a1338b63f62cc6c82b1)
- [https://github.com/microsoft/UFO/releases/tag/v3.0.9](https://github.com/microsoft/UFO/releases/tag/v3.0.9)
- [https://github.com/microsoft/UFO/security/advisories/GHSA-cmq9-vqjf-4q2q](https://github.com/microsoft/UFO/security/advisories/GHSA-cmq9-vqjf-4q2q)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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