CVE-2025-47097 is an integer underflow vulnerability classified under CWE-191 affecting Adobe InCopy versions 20.3, 19.5.3, and earlier. Integer underflow occurs when an arithmetic operation causes a variable to wrap around below its minimum representable value, leading to unexpected behavior. In this case, the vulnerability enables an attacker to craft a malicious InCopy file that, when opened by a user, triggers the underflow condition. This can corrupt memory or program state, allowing arbitrary code execution within the context of the current user. The vulnerability requires user interaction, as the victim must open the malicious file, and no privileges are required to exploit it. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates local attack vector, low attack complexity, no privileges required, user interaction needed, unchanged scope, and high impact on confidentiality, integrity, and availability. Although no public exploits are known yet, the high impact and relatively low complexity make this a critical concern for users of affected Adobe InCopy versions. Adobe has not yet published patches or mitigation details, but the vulnerability is officially published and tracked.

The vulnerability allows attackers to execute arbitrary code with the privileges of the current user, potentially leading to full compromise of the affected system. This can result in data theft, unauthorized system modifications, installation of malware, or denial of service. Since Adobe InCopy is widely used in publishing and creative industries, exploitation could disrupt business operations, leak sensitive intellectual property, or facilitate further lateral movement within corporate networks. The requirement for user interaction limits mass exploitation but targeted spear-phishing or supply chain attacks remain plausible. The high CVSS score reflects the broad impact on confidentiality, integrity, and availability, making this a significant threat to organizations relying on Adobe InCopy for content creation and editing.

1. Monitor Adobe security advisories closely and apply official patches immediately once released. 2. Until patches are available, restrict the opening of InCopy files from untrusted or unknown sources. 3. Employ application whitelisting and sandboxing to limit the execution context of Adobe InCopy. 4. Educate users about the risks of opening files from untrusted emails or websites to reduce the likelihood of successful exploitation. 5. Use endpoint detection and response (EDR) tools to monitor for suspicious behaviors indicative of exploitation attempts. 6. Implement network segmentation to limit potential lateral movement if a system is compromised. 7. Maintain regular backups of critical data to enable recovery in case of compromise. 8. Consider disabling or restricting macros or scripting features within Adobe InCopy if applicable.