CVE-2025-24453 is a heap-based buffer overflow vulnerability (CWE-122) identified in Adobe InDesign Desktop versions ID20.1, ID19.5.2, and earlier. The vulnerability arises from improper handling of heap memory during file processing, which can lead to memory corruption. When a user opens a maliciously crafted InDesign file, the overflow can overwrite critical data structures on the heap, enabling an attacker to execute arbitrary code within the context of the current user. This can lead to full compromise of the user's session, including potential data theft, system manipulation, or further malware deployment. Exploitation requires user interaction (opening a malicious file) but no authentication or elevated privileges, making it accessible to remote attackers who can deliver files via email or other means. The CVSS v3.1 score of 7.8 reflects high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required. Although no exploits are currently known in the wild, the widespread use of Adobe InDesign in creative and publishing sectors makes this a significant threat. The lack of available patches at the time of disclosure necessitates immediate mitigation efforts to reduce exposure.

The vulnerability allows attackers to execute arbitrary code with the same privileges as the current user, potentially leading to data theft, unauthorized system access, or disruption of services. Since Adobe InDesign is widely used in media, publishing, and creative industries, exploitation could result in intellectual property loss, operational downtime, and reputational damage. The requirement for user interaction limits mass exploitation but targeted spear-phishing attacks could be highly effective. Organizations with large creative teams or those handling sensitive design files are at increased risk. The compromise of a single user’s machine could serve as a foothold for lateral movement within corporate networks, especially if the user has elevated privileges or access to critical resources.

Until official patches are released, organizations should implement strict file handling policies, including disabling or restricting the opening of InDesign files from untrusted sources. Employ advanced email filtering and sandboxing to detect and block malicious attachments. Educate users about the risks of opening unsolicited or suspicious files. Use endpoint protection solutions capable of detecting anomalous behavior related to heap overflows or code execution attempts. Monitor network and host logs for unusual activity indicative of exploitation attempts. Once Adobe releases patches, prioritize immediate deployment across all affected systems. Additionally, consider application whitelisting to prevent unauthorized code execution and enforce the principle of least privilege to limit the impact of potential exploitation.