CVE-2025-61824 is a heap-based buffer overflow vulnerability identified in Adobe InDesign Desktop versions 20.5, 19.5.5, and earlier. The vulnerability arises from improper handling of heap memory during processing of certain file inputs, which can lead to memory corruption. An attacker can exploit this by crafting a malicious InDesign file that, when opened by a user, triggers the overflow and allows arbitrary code execution within the context of the current user. This could enable attackers to execute malicious payloads, potentially leading to data theft, system compromise, or further lateral movement within a network. The attack vector requires user interaction, specifically opening a malicious file, and does not require prior authentication, increasing the risk in environments where users frequently handle files from untrusted sources. The CVSS v3.1 score of 7.8 reflects high severity, with impacts on confidentiality, integrity, and availability. Currently, there are no publicly known exploits in the wild, but the vulnerability's nature and Adobe's widespread use make it a significant concern. No patches were linked at the time of reporting, indicating organizations should monitor Adobe advisories closely. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow), a common and dangerous class of memory corruption bugs.

For European organizations, especially those in media, publishing, and creative sectors relying on Adobe InDesign, this vulnerability poses a substantial risk. Successful exploitation can lead to arbitrary code execution, enabling attackers to steal sensitive intellectual property, deploy ransomware, or establish persistent footholds. The requirement for user interaction means phishing or social engineering campaigns could be effective attack vectors. Confidentiality is at risk due to potential data exfiltration; integrity could be compromised by unauthorized modification of documents or system files; availability might be affected if attackers deploy destructive payloads. Given Adobe InDesign's popularity in European creative industries, the impact could disrupt business operations and damage reputations. Organizations with lax endpoint security or insufficient user training are particularly vulnerable. The absence of known exploits currently provides a window for proactive mitigation, but the high severity score underscores the urgency of addressing the issue.

1. Monitor Adobe's official channels for patches and apply them immediately upon release to affected InDesign Desktop versions. 2. Until patches are available, restrict the opening of InDesign files from untrusted or unknown sources, employing strict email filtering and attachment scanning. 3. Implement application whitelisting and sandboxing to limit the execution context of InDesign and reduce the impact of potential exploits. 4. Educate users on the risks of opening unsolicited or suspicious files, emphasizing verification of file origins. 5. Deploy advanced endpoint detection and response (EDR) solutions capable of detecting anomalous behaviors indicative of exploitation attempts. 6. Regularly back up critical data and ensure backups are isolated from the main network to aid recovery in case of compromise. 7. Conduct vulnerability assessments and penetration testing focused on Adobe products to identify exposure. 8. Employ network segmentation to limit lateral movement if a system is compromised via this vulnerability.