Adobe InDesign Desktop Heap Overflow in 21.3/20.5.3 Arbitrary Code Exec
CVE-2026-34701 Published on June 9, 2026

InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-34701 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().


Products Associated with CVE-2026-34701

Want to know whenever a new CVE is published for Adobe InDesign? stack.watch will email you.

Adobe InDesign
 

Affected Versions

Adobe InDesign Desktop: