CVE-2026-21358

MEDIUM EPSS 4.9%

Published Feb 10, 20264mo ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published Feb 10, 2026 4mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

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

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

4.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-122

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 4

Vendor	Product	Version	Range
adobe	indesign	*	<20.5.2
adobe	indesign	*	≥21.0 – <21.2
apple	macos	*	any
microsoft	windows	*	any

References 1

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

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.