Dreamweaver Desktop | Improper Input Validation (CWE-20)

published 2026-01-13 9 mo ago modified 2026-08-28 2 mo ago also EUVD-2026-2060

cvss: 8.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits: 0; none known

Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper Input Validation vulnerability that could lead to arbitrary file system write. An attacker could leverage this vulnerability to manipulate or inject malicious data into files on the system. Exploitation of this issue requires user interaction in that a victim must open a malicious file and scope is changed.

Patch / fix

fixed in 1

Adobe Adobe Dreamweaver Desktop 21.7

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 9 mo ago (2026-01-14)

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.6	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

Adobe Adobe Dreamweaver Desktop

Classification

Weakness

CWE-20 Improper Input Validation

References

helpx.adobe.com /security/products/dreamweaver/apsb26-01.html
vendor-advisory

Sources

CVE List CVE-2026-21272
NVD CVE-2026-21272

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary