CVE-2025-27178 is an out-of-bounds write vulnerability classified under CWE-787 affecting Adobe InDesign Desktop versions ID20.1, ID19.5.2, and earlier. This vulnerability arises when the software improperly handles memory boundaries during file processing, allowing an attacker to write data outside the intended buffer. Such memory corruption can lead to arbitrary code execution within the context of the current user. The attack vector requires the victim to open a maliciously crafted InDesign file, making user interaction mandatory. The vulnerability does not require prior authentication, increasing its risk profile. The CVSS v3.1 base score of 7.8 indicates high severity, with metrics showing low attack complexity, no privileges required, and user interaction needed. The impact covers confidentiality, integrity, and availability, as arbitrary code execution can lead to data theft, system compromise, or denial of service. Currently, there are no publicly known exploits in the wild, but the vulnerability's nature and Adobe's widespread use make it a significant threat. No patches have been linked yet, so organizations must monitor Adobe advisories closely. The vulnerability affects creative professionals and enterprises relying on Adobe InDesign for desktop publishing, making it critical to address promptly once fixes are available.

The potential impact of CVE-2025-27178 is substantial for organizations worldwide, particularly those in creative industries, publishing, marketing, and media sectors that rely heavily on Adobe InDesign Desktop. Successful exploitation can lead to arbitrary code execution with the privileges of the current user, potentially allowing attackers to steal sensitive information, install malware, or disrupt operations. Since the vulnerability requires user interaction through opening a malicious file, phishing or social engineering campaigns could be leveraged to deliver the exploit. Compromise could extend beyond individual workstations if attackers use lateral movement techniques, threatening broader network security. The integrity of published content and intellectual property could be jeopardized, and availability may be impacted if systems become unstable or are taken offline due to malicious payloads. The lack of authentication requirements and low attack complexity increase the likelihood of exploitation once a working exploit emerges. Organizations without timely patching or mitigation controls face elevated risk of data breaches and operational disruption.

To mitigate CVE-2025-27178 effectively, organizations should implement a multi-layered approach beyond generic advice: 1) Immediately restrict the opening of InDesign files from untrusted or unknown sources through email filtering and endpoint controls. 2) Educate users on the risks of opening unsolicited or suspicious InDesign files and train them to recognize phishing attempts. 3) Employ application whitelisting and sandboxing techniques to isolate InDesign processes and limit the impact of potential exploits. 4) Monitor network and endpoint logs for unusual behavior related to InDesign file handling or unexpected process executions. 5) Maintain strict access controls and least privilege principles to minimize the damage scope if exploitation occurs. 6) Stay vigilant for Adobe security advisories and apply patches promptly once released. 7) Consider deploying advanced endpoint detection and response (EDR) solutions capable of detecting exploitation attempts targeting memory corruption vulnerabilities. 8) Backup critical data regularly and verify restoration procedures to ensure resilience against potential ransomware or destructive payloads delivered via this vulnerability.