Product:
InDesign Desktop
Summary
InDesign Desktop versions 21.1, 20.5.1 and earlier are affected by a Heap-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.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-21357 |
Exploitation
To exploit this vulnerability, an attacker must craft a malicious file that, when opened by the victim using an affected version of InDesign Desktop, triggers the buffer overflow. This requires the victim to be tricked into opening the file, which can be delivered through various means such as email attachments or downloads from untrusted sources.
Affected Products
- InDesign Desktop 21.1: Affected by a heap-based buffer overflow vulnerability.
- InDesign Desktop 20.5.1: Also vulnerable to the same issue.
- Earlier versions: All versions prior to 21.1 and 20.5.1 are affected.
Mitigation
To mitigate this vulnerability, users should avoid opening files from untrusted sources and ensure they are using the latest version of InDesign Desktop. Adobe may provide patches or updates to address this issue, so keeping the software up to date is crucial.