The provided information refers to zero-day vulnerabilities in EPS (Encapsulated PostScript) processing that have been exploited by multiple threat actors. EPS files are a graphics file format commonly used in desktop publishing and graphic design, often embedded within other documents or used in printing workflows. Zero-day vulnerabilities in EPS processing imply that attackers can craft malicious EPS files that, when processed by vulnerable software, could lead to arbitrary code execution or other malicious outcomes without prior knowledge or available patches. Although the exact technical details are sparse, the exploitation by multiple threat actors suggests that these vulnerabilities have been leveraged in targeted attacks or campaigns. The lack of affected versions and patch information indicates that this is an older issue (published in 2017) with limited public disclosure or remediation details. The threat level and analysis scores (3 and 2 respectively) imply a moderate concern but the overall severity is marked as low. No known exploits in the wild were reported at the time, which may indicate limited or controlled exploitation. The mention of the tool "gamefish" in the tags could relate to the threat actor toolkit or campaign name but does not provide direct technical insight. Overall, this threat involves exploitation of EPS file processing vulnerabilities that could compromise systems handling such files, particularly in environments where EPS files are frequently used or processed automatically.

For European organizations, the exploitation of EPS processing zero-days could lead to unauthorized code execution, potentially compromising confidentiality, integrity, and availability of affected systems. Organizations in sectors such as publishing, media, printing, advertising, and graphic design are more likely to handle EPS files regularly, increasing their exposure. Successful exploitation could result in malware installation, data theft, or disruption of business processes. Although the severity is assessed as low, the presence of multiple threat actors exploiting these zero-days indicates a persistent risk. European organizations relying on legacy or unpatched software for EPS processing may be particularly vulnerable. Additionally, automated document processing systems or print servers that handle EPS files without adequate security controls could serve as attack vectors. The impact is somewhat mitigated by the low severity and absence of known widespread exploitation, but targeted attacks remain a concern.

Given the lack of specific patch information, European organizations should implement layered defenses to mitigate risks from EPS processing vulnerabilities. These include: 1) Restricting or disabling EPS file processing in software where possible, especially in automated workflows; 2) Employing file type filtering and sandboxing for EPS files to detect and isolate potentially malicious content; 3) Ensuring all software that handles EPS files is updated to the latest versions and monitoring vendor advisories for patches; 4) Implementing strict access controls and network segmentation to limit the impact of potential compromises; 5) Using endpoint detection and response (EDR) solutions to identify suspicious behavior related to EPS file handling; 6) Training staff to recognize suspicious files and avoid opening unsolicited or unexpected EPS files; 7) Monitoring threat intelligence feeds for updates on EPS-related exploits and indicators of compromise; 8) Considering conversion of EPS files to safer formats where feasible before processing.