CVE-2025-11242 is a critical Server-Side Request Forgery (SSRF) vulnerability identified in Okulistik, a software product developed by Teknolist Computer Systems Software Publishing Industry and Trade Inc. SSRF vulnerabilities occur when an attacker can manipulate a server to send crafted HTTP requests to internal or external systems that the attacker cannot directly access. In this case, the vulnerability allows unauthenticated attackers to induce the Okulistik server to perform arbitrary HTTP requests, potentially accessing internal services, sensitive data, or triggering further attacks such as remote code execution or lateral movement within the network. The CVSS 3.1 base score of 9.8 reflects the high impact on confidentiality, integrity, and availability, combined with the ease of exploitation (network attack vector, low attack complexity, no privileges or user interaction required). The vulnerability affects all versions of Okulistik up to 21102025, though no patches are currently available. The lack of known exploits in the wild suggests it is either newly disclosed or under active research. However, the potential for severe damage is high, especially in environments where Okulistik is integrated with sensitive internal systems or critical infrastructure. The vulnerability is classified under CWE-918, which covers SSRF issues that can lead to unauthorized internal resource access or server compromise.

For European organizations, the impact of CVE-2025-11242 could be substantial. Okulistik is likely used in sectors such as education, healthcare, or administrative services, where sensitive personal data and critical operations are managed. Exploitation of this SSRF vulnerability could lead to unauthorized access to internal networks, data exfiltration, disruption of services, or pivoting to other internal systems. This could result in breaches of GDPR regulations due to exposure of personal data, financial losses, reputational damage, and operational downtime. The critical severity and ease of exploitation mean attackers can quickly leverage this vulnerability to compromise systems without needing credentials or user interaction. European organizations with interconnected internal networks or cloud environments are particularly at risk, as SSRF can be used to bypass perimeter defenses and reach protected resources. The absence of patches increases the urgency for interim mitigations to reduce attack surface and monitor for suspicious activity.

1. Implement strict egress filtering and network segmentation to limit the Okulistik server’s ability to make outbound HTTP requests to only trusted destinations. 2. Deploy Web Application Firewalls (WAFs) with rules designed to detect and block SSRF attack patterns targeting Okulistik endpoints. 3. Monitor network traffic logs for unusual or unexpected outbound requests originating from Okulistik servers, especially to internal IP ranges or sensitive services. 4. Restrict Okulistik’s server permissions and isolate it within a dedicated network segment to minimize lateral movement in case of compromise. 5. Engage with Teknolist Computer Systems to obtain patches or updates as soon as they become available and prioritize their deployment. 6. Conduct internal security assessments and penetration tests focusing on SSRF vectors within Okulistik implementations. 7. Educate IT and security teams about SSRF risks and detection techniques specific to Okulistik. 8. If possible, disable or limit features in Okulistik that perform server-side HTTP requests until a patch is released.