A critical heap-based buffer overflow in Adobe InDesign Desktop poses a risk of arbitrary code execution to end users who open malicious files.

The software contains a heap-based buffer overflow (CWE-122) triggered when the application processes a malformed file. Successful exploitation requires user interaction, specifically the opening of a malicious file by a victim, which allows an attacker to execute code within the context of the current user.

The ability for an attacker to execute arbitrary code on a user machine poses a significant risk of data exfiltration, malware installation, and lateral movement within the corporate network. With a CVSS score of 7.8, this vulnerability is classified as High severity, reflecting the potential for total loss of confidentiality, integrity, and availability on the affected workstation.

Immediate Action: Apply the security updates provided by Adobe in APSB25-106 immediately to patch the affected software versions.

Proactive Monitoring: Review endpoint security logs for suspicious file execution patterns or unexpected child processes spawned by the InDesign application.

Compensating Controls: Implement robust email filtering and browser-based file sandboxing to prevent malicious files from reaching the end user environment.

Public Exploit Available: Unknown

Given the potential for arbitrary code execution, all IT departments should prioritize deploying the Adobe security patches across all workstations running InDesign. Ensure that users are educated on the risks of opening untrusted files, as user interaction remains the primary vector for this exploit.