CVE-2023-21591: Adobe Indesign

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Adobe InDesign version 18.0 (and earlier), 17.4 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Indesign: from 17.0, up to and including 17.4; version 18.0 only

Published 2023-01-13. Last modified 2026-06-17.