CVE-2025-65404 identifies a buffer overflow vulnerability in the getSideInfo2() function within Live555 Streaming Media version 2018.09.02. Live555 is an open-source media streaming library widely used in various streaming applications and embedded devices. The vulnerability arises when the function processes MP3 streams; a crafted MP3 stream can trigger a buffer overflow, leading to a Denial of Service (DoS) by crashing the application or causing undefined behavior. The flaw does not require user authentication, meaning any entity capable of sending MP3 streams to the vulnerable system can exploit it. Although no known exploits have been reported in the wild, the lack of patches and the nature of the vulnerability make it a significant risk. The absence of a CVSS score limits precise severity quantification, but the potential for service disruption and the ease of triggering the overflow highlight the threat's seriousness. The vulnerability affects all systems using the specified Live555 version, which may include media servers, streaming appliances, and embedded devices in various sectors. Attackers could leverage this to disrupt services, impacting availability and potentially leading to broader operational issues if exploited in critical environments.

For European organizations, the primary impact is service disruption due to Denial of Service conditions caused by processing malicious MP3 streams. Organizations relying on Live555 for streaming media delivery, including broadcasters, telecom providers, and enterprises using embedded streaming devices, could experience outages or degraded service quality. This could affect customer experience, operational continuity, and potentially lead to financial losses. Critical infrastructure sectors using embedded devices with Live555 may face operational risks if media streaming components are integral to their systems. The vulnerability does not appear to allow code execution or data compromise directly, so confidentiality and integrity impacts are limited. However, availability impacts can be significant, especially in environments where continuous media streaming is essential. The lack of patches increases exposure duration, and the ease of exploitation without authentication raises the risk profile for European entities.

European organizations should immediately audit their environments to identify systems running Live555 Streaming Media version 2018.09.02 or similar vulnerable versions. Until patches are available, organizations should implement strict input validation and filtering to block untrusted or suspicious MP3 streams at network boundaries or application layers. Deploying network-level controls such as deep packet inspection (DPI) to detect and block malformed MP3 streams can reduce exposure. Monitoring media streaming services for crashes or abnormal behavior can provide early detection of exploitation attempts. Organizations should engage with vendors or open-source maintainers for updates and apply patches promptly once released. Additionally, segmenting streaming media infrastructure from critical operational networks can limit the impact of potential DoS attacks. Incident response plans should include procedures for handling streaming service disruptions caused by this vulnerability.