CVE-2026-21278

MEDIUM EPSS 8.8%

Published Jan 13, 20265mo ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published Jan 13, 2026 5mo ago

Last Modified Jun 17, 2026 1w ago

Description

InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. 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:H/I:N/A:N

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality High

Integrity None

Availability None

Threat Intelligence

EPSS Exploit Probability

8.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 4

Vendor	Product	Version	Range
adobe	indesign	*	<20.5.1
adobe	indesign	*	≥21.0 – <21.1
apple	macos	*	any
microsoft	windows	*	any

References 1

helpx.adobe.com https://helpx.adobe.com/security/products/indesign/apsb26-02.html

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.