CVE-2025-62672 is a vulnerability identified in the boyns rplay software, specifically affecting versions up to 3.3.2. The root cause is an allocation of resources without proper limits or throttling (CWE-770) in the rplay_unpack function located in librplay/rplay.c. The vulnerability manifests during the processing of packet data in the RPLAY_DATA case, where a memcpy operation can be exploited by specially crafted packets. This leads to a segmentation fault (SIGSEGV) and subsequent daemon crash, resulting in a denial of service (DoS) condition. The flaw is exploitable remotely without authentication or user interaction, as the vulnerable code processes incoming packet data directly. The CVSS v3.1 base score is 5.3, reflecting a medium severity level, with attack vector network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and impact limited to availability (A:L) without affecting confidentiality or integrity. No patches or known exploits have been reported at the time of publication, but the vulnerability poses a risk to service availability in environments where rplay is deployed. The lack of throttling or resource limits can potentially be leveraged to cause repeated crashes or resource exhaustion, impacting system stability and uptime.

For European organizations, the primary impact of CVE-2025-62672 is denial of service, which can disrupt critical network services or applications relying on boyns rplay. This may affect operational continuity, especially in sectors such as telecommunications, industrial control systems, or any infrastructure using rplay for data replay or network functions. While confidentiality and integrity are not directly compromised, the availability impact can lead to downtime, loss of productivity, and potential cascading failures in dependent systems. Organizations with high availability requirements or those operating in regulated industries may face compliance and reputational risks if service disruptions occur. The unauthenticated nature of the exploit increases the threat level, as attackers can trigger the vulnerability remotely without needing credentials or user interaction. Although no active exploitation is reported, the medium severity rating and ease of exploitation warrant proactive mitigation to prevent potential attacks.

To mitigate CVE-2025-62672, European organizations should first verify if they are running affected versions of boyns rplay (up to 3.3.2). Since no official patches are currently available, organizations should implement network-level controls to restrict or monitor incoming traffic to the rplay service, such as firewall rules or intrusion prevention systems that can detect and block malformed packets targeting the RPLAY_DATA case. Rate limiting and traffic shaping can help prevent resource exhaustion by limiting the number of packets processed per time unit. Additionally, isolating rplay services in segmented network zones reduces exposure. Organizations should also monitor logs and daemon health to detect repeated crashes or anomalies indicative of exploitation attempts. Engaging with the vendor for updates or patches and applying them promptly once available is critical. Finally, conducting regular vulnerability assessments and penetration testing focused on rplay can help identify and remediate weaknesses before exploitation occurs.