Out-of-bounds Read Vulnerability in Adobe InDesign Desktop
CVE-2026-21278

5.5MEDIUM

Key Information:

Vendor

Adobe
Status
Indesign Desktop
Vendor
CVE Published:
13 January 2026

What is CVE-2026-21278?

Adobe InDesign Desktop versions 21.0, 19.5.5, and earlier are vulnerable to an Out-of-bounds Read issue, allowing attackers to potentially access sensitive information from memory. Exploitation necessitates user action; a victim must open a specially crafted file. Users of affected versions are urged to remain alert and follow security advisories for protection.

Affected Version(s)

InDesign Desktop 0 <= 19.5.5

References

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

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.