OS Command Injection in Adobe Dreamweaver - CVE-2026-21267
Published: January 14, 2026
Vulnerability identifier: #VU121533
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21267
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote attacker can trick the victim into opening a specially crafted file and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Adobe Dreamweaver
How to mitigate CVE-2026-21267
Install updates from vendor's website.
Adobe Dreamweaver - update to 21.7