What’s Vulnerable › Vulnerabilities
CVE-2026-21358: InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-10 · updated 2026-08-28
- Weakness: CWE-122
Description
InDesign Desktop versions 21.1, 20.5.1 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected products
- Adobe InDesign Desktop: before 20.5.2; from 21.0 before 21.2 — fixed in 20.5.2, 21.2
How to fix
Upgrade to a fixed version: Adobe InDesign Desktop 20.5.2, 21.2. Check the vendor advisory for mitigations.
References
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