CVE-2025-49528 is a stack-based buffer overflow vulnerability identified in Adobe Illustrator versions 28.7.6, 29.5.1, and earlier. The vulnerability arises from improper handling of input data when processing Illustrator files, allowing an attacker to overwrite the stack memory. This can lead to arbitrary code execution within the context of the current user. The attack vector requires user interaction, specifically the victim opening a maliciously crafted Illustrator file, which triggers the overflow. The vulnerability does not require any privileges or authentication, making it accessible to remote attackers who can convince users to open malicious files. The CVSS 3.1 base score of 7.8 reflects a high severity, with impacts on confidentiality, integrity, and availability (all rated high). Although no public exploits are currently known, the nature of the vulnerability and the widespread use of Adobe Illustrator in creative and enterprise environments make it a significant risk. The lack of available patches at the time of publication increases the urgency for organizations to implement mitigations. This vulnerability is classified under CWE-121, which covers stack-based buffer overflows, a common and dangerous class of memory corruption bugs that can lead to system compromise.

If exploited, this vulnerability could allow attackers to execute arbitrary code with the same privileges as the user running Adobe Illustrator. This could lead to unauthorized access to sensitive data, installation of malware, lateral movement within networks, and disruption of business operations. Since the vulnerability affects confidentiality, integrity, and availability, organizations face risks including data breaches, intellectual property theft, and potential ransomware deployment. The requirement for user interaction limits mass exploitation but does not prevent targeted attacks, especially in sectors relying heavily on Adobe Illustrator for design and media production. The absence of known exploits currently provides a window for proactive defense, but once exploits emerge, the impact could be severe. Enterprises with large creative teams or those processing untrusted Illustrator files are particularly vulnerable. The vulnerability could also be leveraged in spear-phishing campaigns where attackers send malicious files to high-value targets.

Organizations should immediately restrict the opening of Illustrator files from untrusted or unknown sources to reduce exposure. Implementing strict email filtering and endpoint protection to detect and block malicious files can help prevent exploitation. Users should be educated about the risks of opening unsolicited or suspicious Illustrator files. Until Adobe releases an official patch, consider deploying application whitelisting or sandboxing Illustrator to limit the impact of potential exploitation. Monitoring for unusual process behavior or crashes related to Illustrator can provide early detection of exploitation attempts. Organizations should also maintain up-to-date backups to recover from potential compromises. Once Adobe releases a patch, prioritize timely deployment across all affected systems. Additionally, network segmentation and least privilege principles can limit the spread of an attack originating from this vulnerability.