CVE-2024-54192 is a vulnerability identified in Tcpreplay version 4.5.1, a widely used open-source tool for replaying network traffic for testing and analysis purposes. The vulnerability exists in the tcpedit_dlt_getplugin function located in the source file src/tcpedit/plugins/dlt_utils.c. Specifically, when processing a crafted input file, the function mishandles data leading to a denial of service condition. This is classified under CWE-400, indicating a resource exhaustion or uncontrolled resource consumption issue. The attack vector requires local access (AV:L), low attack complexity (AC:L), and low privileges (PR:L), but does require user interaction (UI:R). The impact is limited to availability (A:H), with no confidentiality or integrity compromise. The vulnerability can cause the application to crash or become unresponsive, disrupting network testing workflows. No public exploits or patches are currently available, which means organizations must rely on mitigating controls until an official fix is released. The vulnerability was published on February 10, 2026, and is assigned a CVSS v3.1 score of 5.0, reflecting its medium severity. The lack of remote exploitation capability limits the attack surface primarily to internal users or compromised systems.

For European organizations, the primary impact of CVE-2024-54192 is the potential denial of service of Tcpreplay instances used in network testing, forensic analysis, or security research. Disruption of these tools can delay incident response, vulnerability assessments, and network troubleshooting activities, potentially increasing exposure to other threats. Organizations relying on Tcpreplay in critical infrastructure sectors such as telecommunications, finance, or government may experience operational delays or reduced visibility into network traffic behaviors. Since exploitation requires local access and user interaction, insider threats or compromised endpoints pose the greatest risk. The vulnerability does not expose sensitive data or allow privilege escalation, but availability impacts can cascade if network testing is integral to security operations. The absence of known exploits reduces immediate risk, but the medium severity score and the tool’s role in security workflows warrant proactive mitigation.

1. Restrict local access to systems running Tcpreplay to trusted users only, employing strict access controls and user authentication. 2. Monitor system and application logs for abnormal crashes or resource usage patterns indicative of exploitation attempts. 3. Employ endpoint protection solutions to detect and prevent execution of crafted files targeting Tcpreplay. 4. Educate users about the risks of opening or processing untrusted files with Tcpreplay to reduce inadvertent triggering of the vulnerability. 5. Isolate Tcpreplay environments from production systems to contain potential denial of service impacts. 6. Track vendor communications and apply patches or updates promptly once available. 7. Consider implementing application whitelisting and sandboxing for Tcpreplay to limit the impact of malicious inputs. 8. Conduct regular security assessments of network testing tools and their configurations to identify and remediate weaknesses.