A newly uncovered critical vulnerability, tracked as CVE-2025-42957, is sending shockwaves through the enterprise technology world. Affecting all SAP S/4HANA deployments, both on-premise and in private cloud environments, this ABAP code injection flaw carries a near-maximum CVSS score of 9.9. What makes it especially dangerous is its low complexity: attackers armed with only low-privileged credentials can remotely inject code and achieve a full system takeover—no user interaction required.
Discovered by SecurityBridge and patched by SAP in August 2025, the vulnerability is already being actively exploited in the wild. Attackers have been observed manipulating business data, creating new privileged SAP users, stealing password hashes, and modifying core business processes. In the worst cases, compromised systems could face fraud, espionage, massive data theft, or devastating ransomware attacks capable of halting operations across entire enterprises.
SAP systems sit at the heart of global businesses, managing financials, supply chains, HR, and more. A compromise here can not only disrupt operations but also undermine strategic decisions by quietly altering key data. The danger is amplified by the speed with which attackers can reverse-engineer SAP’s patch, making unpatched environments an open door to compromise.
Experts stress that applying SAP’s August security notes (3627998 and 3633838) is non-negotiable. Yet patching complex, highly customized ERP landscapes isn’t easy—often requiring rigorous testing before production deployment. In the meantime, organizations must harden their defenses by restricting authorizations, monitoring RFC activity, segmenting networks, and practicing incident response drills.
This episode breaks down how CVE-2025-42957 works, why it matters, and what organizations must do now to prevent catastrophic breaches. With SAP systems increasingly interconnected and cloud-driven, this vulnerability is a stark reminder that ERP security must be continuous, holistic, and relentlessly proactive.
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