CVE-2025-42875 identifies a vulnerability in the SAP NetWeaver Internet Communication Framework, specifically related to missing authentication for critical functions (CWE-306). The framework fails to perform necessary authentication checks on certain features that require user identification, allowing attackers to reuse authorization tokens improperly. This bypass of secure authentication mechanisms can lead to unauthorized access to sensitive functions within the SAP environment. The vulnerability affects a broad range of SAP_BASIS versions from 700 through 758, indicating a long-standing issue across multiple releases. The CVSS 3.1 score of 6.6 (AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L) indicates that the vulnerability can be exploited remotely over the network with low attack complexity but requires the attacker to have high privileges already. The scope is changed, meaning the vulnerability can affect resources beyond the initially compromised component. The impact on confidentiality, integrity, and availability is low but present, as unauthorized token reuse could lead to limited data exposure or function misuse. No user interaction is required, and no known exploits have been reported in the wild to date. This vulnerability highlights a critical lapse in authentication enforcement within SAP's Internet Communication Framework, which is a core component for integrating SAP systems with external communication protocols. Organizations relying on these SAP versions should be aware of the risk of token reuse attacks that could undermine secure access controls.

For European organizations, the impact of CVE-2025-42875 is primarily related to the potential unauthorized reuse of authorization tokens within SAP NetWeaver environments. While the confidentiality, integrity, and availability impacts are rated low, the vulnerability could allow attackers with existing high privileges to escalate their access or perform unauthorized actions within critical SAP functions. This could lead to data leakage, manipulation of business processes, or disruption of services dependent on SAP systems. Given SAP's widespread use in European enterprises, especially in sectors like manufacturing, finance, utilities, and public administration, exploitation could undermine operational security and trust. The vulnerability's requirement for high privileges reduces the risk of external attackers directly exploiting it but raises concerns about insider threats or compromised privileged accounts. The lack of authentication checks also violates compliance requirements for secure access controls, potentially exposing organizations to regulatory penalties. Overall, the vulnerability could facilitate lateral movement and privilege escalation within SAP landscapes, impacting business continuity and data protection efforts in Europe.

1. Apply SAP-provided patches or updates addressing CVE-2025-42875 as soon as they become available to enforce proper authentication checks in the Internet Communication Framework. 2. Restrict and tightly control privileged access to SAP systems, ensuring that only authorized personnel have high-level privileges to reduce the risk of token reuse exploitation. 3. Implement robust monitoring and logging of authorization token usage and critical function access within SAP environments to detect anomalous or repeated token reuse patterns. 4. Conduct regular audits of user privileges and session management to identify and revoke unnecessary or stale tokens and credentials. 5. Employ network segmentation and access controls to limit exposure of SAP NetWeaver components to untrusted networks. 6. Educate SAP administrators and security teams about the risks of missing authentication checks and the importance of secure token management. 7. Consider deploying additional security layers such as SAP Enterprise Threat Detection or third-party solutions that can detect suspicious activities related to token misuse. 8. Review and strengthen authentication and authorization policies within SAP to ensure multi-factor authentication and session timeouts are enforced where possible.