CVE-2026-34699
Undergoing Analysis Undergoing Analysis - In Progress
BaseFortify

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Adobe Systems Incorporated

Description
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.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-34699
EUVD
EUVD-2026-35777
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
adobe indesign to 20.5.3 (exc)
adobe indesign_desktop to 21.3 (inc)
adobe indesign_desktop to 20.5.3 (inc)
adobe indesign_desktop *
adobe indesign to 21.3 (inc)
adobe indesign to 20.5.3 (inc)
adobe indesign *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 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().
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Executive Summary

This vulnerability is a Heap-based Buffer Overflow found in Adobe InDesign Desktop versions 21.3, 20.5.3, and earlier. It occurs when a user opens a specially crafted malicious file, which can cause the program to overwrite memory in an unsafe way.

As a result, an attacker could execute arbitrary code with the same privileges as the current user, potentially taking control of the affected system.

Exploitation requires user interaction, meaning the victim must open the malicious file for the attack to succeed.

Impact Analysis

If exploited, this vulnerability can allow an attacker to run arbitrary code on your system with your user privileges.

This could lead to unauthorized actions such as installing malware, stealing data, or modifying files.

Since the attack requires opening a malicious file, users must be cautious about files received from untrusted sources.

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