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CVE-2026-27286

MEDIUM CVSS 3.1: 5.5 EPSS 0.02%
Updated Apr 16, 2026
Apple
Parameter Value
CVSS 5.5 (MEDIUM)
Affected Versions 21.0 — 21.3
Fixed In 20.5.3
Type CWE-122 (Heap-based Buffer Overflow)
Vendor Apple
Public PoC No

InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 4

Configuration From (including) Up to (excluding)
Adobe Indesign
cpe:2.3:a:adobe:indesign:*:*:*:*:*:*:*:*
20.5.3
Adobe Indesign
cpe:2.3:a:adobe:indesign:*:*:*:*:*:*:*:*
21.0 <= 21.3
Apple Macos
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Microsoft Windows
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*