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7.8

Adobe InDesign Desktop versions 21.3 and earlier allow malicious file execution

CVE-2026-34702 · published 4 months ago
Summary

Adobe InDesign Desktop versions 21.3 and earlier are vulnerable to a security threat. If a user opens a malicious file, an attacker could potentially take control of the user's computer. Update to the latest version of Adobe InDesign to protect your system.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
adobe adobe indesign <= 21.3
adobe indesign < 20.5.4
>= 21.0, < 21.4
cpe:2.3:a:adobe:indesign:*:*:*:*:*:*:*:*
Original advisory text
InDesign Desktop | Stack-based Buffer Overflow (CWE-121)
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Stack-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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-121Stack-based Buffer Overflow
Timeline
Published9 Jun 2026
Updated26 Oct 2026
First seen9 Jun 2026
Sources
CVE-2026-34702 · NVD
CVE-2026-34702 · MITRE
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