CVE-2025-61845 is a medium-severity out-of-bounds read vulnerability affecting Adobe Format Plugins version 1.1.1 and earlier. The vulnerability stems from improper bounds checking in the plugin's code when processing certain file formats, leading to reading memory outside the intended buffer. This can result in exposure of sensitive information residing in adjacent memory areas. The attack vector requires a victim to open a specially crafted malicious file, making user interaction mandatory. No privileges or prior authentication are needed, which lowers the barrier for exploitation. The vulnerability impacts confidentiality but does not affect integrity or availability. Adobe has not yet released a patch, and no known exploits have been observed in the wild. The CVSS 3.1 base score of 5.5 reflects the medium risk, with the vector string indicating local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), high confidentiality impact (C:H), and no impact on integrity or availability (I:N/A:N). This vulnerability is classified under CWE-125 (Out-of-bounds Read), a common memory safety issue that can lead to information disclosure. Organizations relying on Adobe Format Plugins for document processing should be aware of this risk and prepare to apply patches once available.

For European organizations, the primary impact of CVE-2025-61845 is the potential leakage of sensitive information from memory when users open malicious files. This could include confidential business data, personally identifiable information (PII), or intellectual property, depending on what is loaded in memory at the time of exploitation. Sectors such as finance, healthcare, government, and critical infrastructure that frequently handle sensitive documents are particularly at risk. Although the vulnerability does not allow code execution or system compromise, the confidentiality breach could facilitate further attacks or data leaks. The requirement for user interaction limits mass exploitation but targeted spear-phishing campaigns could be effective. The absence of a patch increases exposure duration, and organizations without strict file handling policies or user awareness training face higher risk. Additionally, the widespread use of Adobe products in Europe means many organizations could be affected, especially those with decentralized IT environments where plugin versions may not be uniformly updated.

1. Immediately implement strict email and file filtering policies to block or quarantine suspicious or unexpected file attachments that could exploit this vulnerability. 2. Educate users about the risks of opening files from untrusted or unknown sources, emphasizing caution with email attachments and downloads. 3. Employ application whitelisting and sandboxing techniques to isolate Adobe Format Plugins and limit their access to sensitive memory areas. 4. Monitor network and endpoint logs for unusual file access patterns or crashes related to Adobe Format Plugins. 5. Maintain an accurate inventory of Adobe Format Plugin versions deployed across the organization to identify vulnerable instances. 6. Prepare to deploy patches promptly once Adobe releases an update addressing CVE-2025-61845. 7. Consider disabling or restricting the use of Adobe Format Plugins in environments where they are not essential. 8. Use Data Loss Prevention (DLP) tools to detect potential leakage of sensitive information that could result from exploitation. These measures go beyond generic advice by focusing on proactive detection, user behavior, and environment hardening specific to this vulnerability.