---
id: CVE-2026-100207
title: >-
  Improper neutralization of special elements used in an os command ('os command
  injection') in Azure CycleCloud allows an authorized attacker to execute code
  locally.
summary: >-
  Improper neutralization of special elements used in an os command ('os command
  injection') in Azure CycleCloud allows an authorized attacker to execute code
  locally.
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: Microsoft
product: Azure CycleCloud 8.9.1
affected:
  - azure_cyclecloud_8.9.1 >= 1.0.0 < 8.9.2
  - azure_cyclecloud_8.9.2 -
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T14:17:06.207'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100207'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100207'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00442
epssPercentile: 0.38198
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-08T00:00:00+00:00'
ingestedAt: '2026-10-13T19:43:28.875Z'
---

## Overview

Improper neutralization of special elements used in an os command ('os command injection') in Azure CycleCloud allows an authorized attacker to execute code locally.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.