CVE-2026-21358

MediumCVSS 5.5/10Last modified Aug 28, 2026

Description

InDesign Desktop versions 21.1, 20.5.1 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-122 CWE-787

Affected software

Vendor	Product	Versions
Adobe	InDesign Desktop	<= 21.1; <= 20.5.1

References

https://helpx.adobe.com/security/products/indesign/apsb26-17.htmlVendor Advisory

Timeline

Published: Feb 10, 2026
Last modified: Aug 28, 2026
NVD status: Analyzed

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