Heap-based Buffer Overflow Vulnerability in Adobe InDesign
CVE-2026-21358

5.5MEDIUM

Key Information:

Vendor

Adobe
Status
Indesign Desktop
Vendor
CVE Published:
10 February 2026

What is CVE-2026-21358?

Adobe InDesign Desktop versions 21.1, 20.5.1, and earlier are susceptible to a heap-based buffer overflow issue that can lead to application crashes, resulting in denial-of-service. Attackers can exploit this vulnerability by enticing users to open a specially crafted malicious file. This can disrupt services and impede productivity, highlighting the importance of vigilance and timely updates to safeguard against potential threats.

Affected Version(s)

InDesign Desktop 0 <= 20.5.1

References

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

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.