Out-of-Bounds Write Vulnerability in Adobe InDesign Desktop
CVE-2026-34700

7.8HIGH

Key Information:

Vendor

Adobe
Status
Indesign Desktop
Vendor
CVE Published:
9 June 2026

What is CVE-2026-34700?

The vulnerability affects Adobe InDesign Desktop versions 21.3, 20.5.3, and earlier, enabling an out-of-bounds write condition. This flaw may lead to arbitrary code execution within the context of the current user. To exploit this vulnerability, an attacker must entice a user to open a specially-crafted malicious file, which could lead to severe security breaches if successful. Users should be cautious and ensure that files are from trusted sources.

Affected Version(s)

InDesign Desktop 0 <= 20.5.3

References

https://helpx.adobe.com/security/products/indesign/apsb26...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.