CVE-2025-54208 is an out-of-bounds write vulnerability classified under CWE-787 affecting Adobe InDesign Desktop versions 20.4, 19.5.4, and earlier. The vulnerability arises from improper handling of memory boundaries when processing certain elements within InDesign files, allowing an attacker to write data beyond allocated memory buffers. This memory corruption can be leveraged to execute arbitrary code in the context of the current user, potentially leading to full compromise of the user's session and data. Exploitation requires the victim to open a specially crafted malicious InDesign file, making user interaction mandatory. The vulnerability does not require prior authentication or elevated privileges, increasing its risk profile. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity but requiring user interaction. No public patches or known exploits are reported yet, but the vulnerability is publicly disclosed and should be considered a significant risk for organizations relying on Adobe InDesign for desktop publishing and creative workflows.

The vulnerability allows attackers to execute arbitrary code with the same privileges as the current user, potentially leading to data theft, system compromise, or disruption of services. Confidential information handled within InDesign projects could be exposed or altered. The integrity of creative content and intellectual property is at risk, which can have severe consequences for media, publishing, and design organizations. Availability may also be impacted if the exploit causes application crashes or system instability. Since exploitation requires user interaction, targeted phishing or social engineering campaigns could be used to deliver malicious files. The widespread use of Adobe InDesign in creative industries globally amplifies the potential impact, especially where sensitive or proprietary content is managed.

Organizations should prioritize patching affected Adobe InDesign Desktop versions as soon as official updates are released by Adobe. Until patches are available, restrict the opening of InDesign files from untrusted or unknown sources. Implement application whitelisting and sandboxing to limit the execution context of InDesign and reduce the impact of potential exploits. Employ endpoint detection and response (EDR) solutions to monitor for anomalous behaviors indicative of exploitation attempts. Educate users about the risks of opening unsolicited or suspicious files and enforce strict email filtering to block malicious attachments. Regularly back up critical creative assets to enable recovery in case of compromise. Additionally, consider isolating creative workstations from sensitive networks to contain potential breaches.