# CVE-2026-21267: Adobe Dreamweaver OS command injection

Source: https://junglewise.ai/threats/cve-2026-21267-adobe-dreamweaver-os-command-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-13. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-21267 · Severity: high · CVSS 8.6 · Published 2026-01-13

Dreamweaver is a web development and design tool used by professionals to create and edit websites. Versions 21.6 and earlier contain a command injection flaw that allows attackers to execute arbitrary code on a developer's computer when a malicious file is opened, potentially compromising the system and any projects or data stored on it.

Technologies: [Adobe Dreamweaver](https://junglewise.ai/threats/technologies/dreamweaver), [Apple macOS](https://junglewise.ai/threats/technologies/macos), [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe), [Apple](https://junglewise.ai/threats/vendors/apple), [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-21267 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21267 being exploited in the wild.

**How severe is CVE-2026-21267?** High severity, with a CVSS score of 8.6, published 13 January 2026.

**Which products and versions are affected?** Adobe Dreamweaver 21.6 and earlier.

**Is there a fix for CVE-2026-21267?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-21267 attacked?** It is attacked with local access, in a web application.

**Am I affected by CVE-2026-21267?** Check whether you run Adobe Dreamweaver, Apple macOS or Microsoft Windows at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Dreamweaver Desktop versions 21.6 and earlier are vulnerable to OS command injection through improper neutralization of special elements used in OS commands. The vulnerability can be exploited via a malicious file that, when opened by a user, causes the application to execute arbitrary OS commands with the privileges of the user running Dreamweaver. Exploitation requires user interaction (opening a crafted file). An attacker can achieve arbitrary code execution on the affected system. Patches for versions above 21.6 are available.

## Affected products

- Adobe Dreamweaver 21.6 and earlier

## Timeline

- 2026-01-13: disclosed

## References

- [https://helpx.adobe.com/security/products/dreamweaver/apsb26-01.html](https://helpx.adobe.com/security/products/dreamweaver/apsb26-01.html)

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