Product:
InDesign Desktop
Summary
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 5.5 | CVE-2026-21278 |
Exploitation
To exploit this vulnerability, an attacker must create a malicious file that, when opened by the victim using an affected version of InDesign Desktop, triggers the out-of-bounds read condition. This requires the victim to be tricked into opening the file, which could be delivered via email or other means.
Affected Products
- InDesign Desktop versions 21.0 and earlier: Vulnerable to memory exposure due to Out-of-bounds Read.
- InDesign Desktop version 19.5.5: Also affected by the same vulnerability.
Mitigation
Users are advised to update to the latest version of InDesign Desktop to mitigate this vulnerability. Regularly applying security updates and being cautious about opening files from untrusted sources can help reduce the risk of exploitation.