CVE-2026-21267: Adobe Dreamweaver OS command injection

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, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, 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

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