---
id: CVE-2026-21267
title: >-
  Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper
  Neutralization of Special Elements used in an OS Command ('OS Command
  Injection') vulnerability that could lead in arbitrary code execution by an
  attacker
summary: >-
  Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper
  Neutralization of Special Elements used in an OS Command ('OS Command
  Injection') vulnerability that could lead in arbitrary code execution by an
  attacker. Exploit…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: adobe
product: dreamweaver
affected:
  - dreamweaver < 21.7
patched:
  - dreamweaver 21.7
published: '2026-01-13'
updated: '2026-08-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21267'
references:
  - url: 'https://helpx.adobe.com/security/products/dreamweaver/apsb26-01.html'
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.00834
epssPercentile: 0.55822
ingestedAt: '2026-08-27T21:08:14.238Z'
---

## Overview

Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could lead in arbitrary code execution by an attacker. Exploitation of this issue requires user interaction in that a victim must open a malicious file and scope is changed.

## Affected

- `dreamweaver < 21.7`

## Remediation

Upgrade past the affected range:

- `dreamweaver 21.7`