CVE-2025-47107 is a high-severity heap-based buffer overflow vulnerability (CWE-122) affecting Adobe InCopy versions 20.2, 19.5.3, and earlier. This vulnerability arises when processing specially crafted malicious files, which can trigger a buffer overflow in the heap memory. Exploitation requires user interaction, specifically opening a malicious file within the vulnerable InCopy application. Successful exploitation allows an attacker to execute arbitrary code with the privileges of the current user, potentially leading to full compromise of the affected system. The vulnerability has a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity but requiring user interaction and local access vector. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that mitigation may rely on workarounds or vendor updates once available. The vulnerability affects a widely used Adobe product in the publishing and media industries, where InCopy is used for editorial workflows and content creation.

For European organizations, this vulnerability poses a significant risk, especially to media companies, publishing houses, advertising agencies, and any enterprise relying on Adobe InCopy for document editing and collaboration. Exploitation could lead to unauthorized code execution, data theft, or disruption of editorial workflows. Given the high confidentiality and integrity impact, sensitive editorial content or intellectual property could be exposed or altered. The requirement for user interaction means phishing or social engineering campaigns could be used to deliver malicious files, increasing the attack surface. Additionally, compromised systems could be used as footholds for lateral movement within corporate networks, potentially affecting broader IT infrastructure. The lack of current patches increases the urgency for European organizations to implement interim mitigations to protect their environments.

1. Immediately restrict the use of Adobe InCopy versions 20.2, 19.5.3, and earlier until patches are released. 2. Implement strict email filtering and attachment scanning to block or quarantine suspicious files, especially those with extensions associated with InCopy documents. 3. Educate users about the risks of opening unsolicited or unexpected files, emphasizing caution with files received via email or external sources. 4. Employ application whitelisting to prevent execution of unauthorized code and restrict InCopy’s ability to execute external processes or scripts. 5. Use endpoint detection and response (EDR) tools to monitor for anomalous behavior indicative of exploitation attempts. 6. Network segmentation should be applied to limit the spread of compromise from affected endpoints. 7. Once Adobe releases patches, prioritize immediate deployment across all affected systems. 8. Maintain regular backups of critical editorial content to enable recovery in case of compromise.