CVE-2026-1110 identifies a buffer overflow vulnerability in the cijliu librtsp library, specifically within the rtsp_parse_method function. This function is responsible for parsing RTSP (Real Time Streaming Protocol) methods, and improper handling of input data leads to a buffer overflow condition. The vulnerability can be triggered by a local attacker with low privileges, without requiring user interaction, which means that an attacker who has some level of access to the host system can exploit this flaw to corrupt memory. The continuous delivery model with rolling releases used by the vendor means that traditional versioning is unavailable, complicating identification of affected versions and patch management. No patches or vendor responses have been provided despite early disclosure, increasing the risk window. The CVSS 4.0 score of 4.8 reflects a medium severity, considering the local attack vector, low complexity, and limited scope of impact. While no public exploits are known, the buffer overflow could lead to crashes, denial of service, or potentially code execution depending on the environment and memory layout. The vulnerability primarily affects software components that embed or utilize the cijliu librtsp library for RTSP protocol handling, common in streaming media, IP cameras, and surveillance systems.

For European organizations, the impact of CVE-2026-1110 depends on the deployment of the cijliu librtsp library within their infrastructure. Organizations using RTSP-based streaming solutions, such as media broadcasters, video surveillance providers, and IoT device manufacturers, may be at risk. The vulnerability allows local attackers to cause memory corruption, which could result in denial of service or potentially privilege escalation if combined with other vulnerabilities. This could disrupt critical services, compromise data integrity, or lead to unauthorized control over affected devices. Given the local attack requirement, insider threats or compromised internal systems pose the greatest risk. The lack of vendor response and patches prolongs exposure, increasing the window for exploitation. European entities relying on continuous integration and rolling release software models may face challenges in tracking and mitigating this vulnerability promptly. Additionally, critical infrastructure sectors that use RTSP-enabled devices for monitoring and control could experience operational disruptions.

To mitigate CVE-2026-1110, European organizations should implement strict local access controls to limit the ability of low-privilege users to execute or interact with vulnerable components. Network segmentation can reduce the risk of lateral movement by attackers who gain local access. Monitoring and logging of RTSP-related processes and unusual memory or application crashes can help detect exploitation attempts. Organizations should audit their software supply chain to identify usage of the cijliu librtsp library and consider temporarily replacing it with alternative RTSP libraries that are not vulnerable. Given the absence of vendor patches, applying runtime protections such as address space layout randomization (ASLR), stack canaries, and control flow integrity (CFI) can reduce exploitation likelihood. Security teams should prepare to deploy patches or updates promptly once available and maintain communication with the vendor or open-source community for updates. Finally, conducting internal penetration testing focusing on local privilege escalation vectors can help identify exposure.