CVE-2026-21267
Dreamweaver <=21.6 has OS command injection enabling RCE after opening a malicious file.
Is CVE-2026-21267 being exploited?
Not confirmed. CVE-2026-21267 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.83% probability of exploitation in the next 30 days.
How severe is CVE-2026-21267?
CVE-2026-21267 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-21267?
Yes. A fix has been recorded for CVE-2026-21267. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21267 affect?
CVE-2026-21267 affects Adobe Dreamweaver Desktop <=21.6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21267?
Update Dreamweaver to fixed version when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary code execution on victim machine via OS command injection; requires user to open a malicious Dreamweaver file.
Patch when possible
- affected<= 21.6
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.