CVE-2026-84396

Medium

Description

InDesign Desktop is affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

SeverityMedium
CVSS5.5
Exploit probability—
ProductInDesign Desktop
PublishedSep 22, 2026
First seenSep 22, 2026

How to fix

Affected products

ProductAffected versionsFixed in
Adobe InDesign Desktopv ≤ 21.5, v ≤ 20.5.4—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-84396 · InDesign Desktop · Dark Radar