What is the CVSS score of CVE-2026-21267?

CVE-2026-21267 has a CVSS 3.1 base score of 8.6 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Dreamweaver are affected by CVE-2026-21267?

CVE-2026-21267 presents significant security risk, a OS command injection vulnerability rated CVSS 8.6.

How to fix or mitigate CVE-2026-21267?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Validate that input sanitization is in place for all user-controlled parameters.

Dreamweaver CVE-2026-21267

HIGH

OS Command Injection (CWE-78)

2026-01-13 psirt@adobe.com

Command Injection Dreamweaver

8.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 13, 2026 - 19:16 nvd

HIGH 8.6

DescriptionCVE.org

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.

AnalysisAI

Arbitrary code execution in Adobe Dreamweaver 21.6 and earlier via OS command injection allows attackers to execute arbitrary commands on affected systems when a victim opens a malicious file. The vulnerability requires local access and user interaction but impacts all confidentiality, integrity, and availability of the system. No patch is currently available.

Technical ContextAI

Classified as CWE-78 (OS Command Injection). Affects Dreamweaver. 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.