CVE-2026-21267: Adobe Dreamweaver Desktop · OS Command Injection
Affects Adobe Dreamweaver DesktopSource CVE Database V5
Not known to be exploited · CVSS 8.6 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AdobeAdobe Dreamweaver Desktop | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2026-21267, organizations should: 1) Immediately restrict the opening of files from untrusted or unknown sources within Adobe Dreamweaver to reduce exposure to malicious inputs. 2) Implement strict user training and awareness programs emphasizing the risks of opening unsolicited or suspicious files. 3) Apply the principle of least privilege by running Dreamweaver with minimal user rights to limit potential damage from exploitation. 4) Monitor system and application logs for unusual command execution or process behavior indicative of exploitation attempts. 5) Use endpoint detection and response (EDR) tools to detect and block suspicious activities related to OS command injection. 6) Once Adobe releases an official patch, prioritize timely deployment across all affected systems. 7) Consider network segmentation to isolate development environments and reduce lateral movement risks. 8) Employ application whitelisting to prevent unauthorized code execution. These targeted measures go beyond generic advice and address the specific exploitation vector and environment of this vulnerability.
Description
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.