CVE-2025-30330 is a heap-based buffer overflow vulnerability (CWE-122) affecting Adobe Illustrator versions 29.3, 28.7.5, and earlier. This vulnerability arises when Illustrator improperly handles memory allocation on the heap, allowing an attacker to overflow a buffer and overwrite adjacent memory. Successful exploitation can lead to arbitrary code execution within the context of the current user. The attack vector requires user interaction, specifically the victim opening a crafted malicious Illustrator file. Due to the heap-based nature of the overflow, exploitation could corrupt program state, potentially leading to execution of attacker-supplied payloads, compromising confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score is 7.8 (high severity), reflecting the local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The scope remains unchanged (S:U), with high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). No known exploits in the wild have been reported yet, and no patches or mitigation links are currently available. This vulnerability is critical for environments where Adobe Illustrator is used to process untrusted or externally sourced files, as it could be leveraged to execute malicious code and compromise user systems.

For European organizations, the impact of CVE-2025-30330 can be significant, especially in sectors relying heavily on Adobe Illustrator for graphic design, publishing, marketing, and media production. Successful exploitation could lead to unauthorized code execution, enabling attackers to steal sensitive intellectual property, deploy malware, or move laterally within corporate networks. Given the high confidentiality, integrity, and availability impacts, organizations could face data breaches, operational disruptions, and reputational damage. The requirement for user interaction (opening a malicious file) means phishing or social engineering campaigns could be used to deliver the exploit, increasing risk in environments with less stringent user awareness training. Additionally, compromised Illustrator instances could serve as entry points for broader cyberattacks targeting European enterprises, including creative agencies, advertising firms, and media companies. The lack of available patches at the time of disclosure further elevates risk, necessitating immediate mitigation efforts to prevent exploitation.

Beyond generic advice, European organizations should implement the following specific measures: 1) Enforce strict email and file attachment filtering to detect and block suspicious Illustrator files, leveraging advanced sandboxing and file inspection tools. 2) Conduct targeted user awareness training focusing on the risks of opening unsolicited or unexpected Illustrator files, emphasizing verification of file sources. 3) Utilize application whitelisting and endpoint detection and response (EDR) solutions to monitor and restrict unauthorized execution of code spawned by Illustrator processes. 4) Isolate Illustrator usage environments, such as running the application within virtualized or containerized sandboxes to contain potential exploitation impact. 5) Maintain rigorous asset inventories to identify all systems running affected Illustrator versions and prioritize patching once updates become available. 6) Collaborate with Adobe support channels to obtain early access to patches or workarounds and monitor threat intelligence feeds for emerging exploit activity. 7) Implement network segmentation to limit lateral movement from compromised workstations. These measures, combined with standard security hygiene, will reduce the attack surface and mitigate exploitation likelihood.