Advisory

SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for vulnerabilities reported by external researchers and their customers every second Tuesday of the month.

SAP Note 3640185 was released on 09.12.2025 and deals with "[CVE-2025-42874] Denial of service (DOS) in SAP NetWeaver (remote service for Xcelsius)" within Java. We advice you to follow the instructions, to resolve denial of service (dos) with a high potential for exploitation in component BW-BEX-ET-XC.

According to SAP Security Advisory team a workaround exists. It is advisable to implement the correction as part of maintenance.

Denial of Service (DoS) attacks that take a system offline may lead to significant cost for the company, studies quantify the costs in average between 4 and 5 millions dollars. Business continuity requires SAP systems staying online. The CVSS scores or vulnerability descriptions are not enough to represent how a simple bug can lead to a significant loss for companies.

Risk specification

A vulnerability in the SAP NetWeaver Java remote service for Xcelsius allows an authenticated attacker to execute arbitrary code on the affected system, which can result in service disruption or unauthorized system control.

Solution

This fix removes the remote service required for Xcelsius. Alternativly, the consulting team has proposed the following: "Please follow the manual activities provided in this note as a workaround.". The suggestion may be considered, as a workaround or compensating mitigation. We recommend installing/applying the correction wherever possible and as soon as possible. Base your decision on whether or not to apply the patch on your companies and systems risk perspective and consider the provided CVSS 7.9 score.

Affected System

SAP Netweaver Application Server Java is part of the SAP NetWeaver Application Platform. It provides the complete infrastructure for deploying and running Java applications.

The AS Java Home: SAP Netweaver Application Server Java wiki
A dedicated SAP NetWeaver 7.40 Application Server for Java Security Guide exists.

The advisory is valid for

Back Download to PDF

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

SecurityBridge - Smart connector SAP to SIEM

SmartConnector ^{SAP© to SIEM}
Enable your global monitoring to detect malicious action in SAP systems to protect your company against Cross-Site Scripting (XSS) or Denial of service (DoS) attacks.

Notifications

Advisory

Risk specification

Solution

Affected System

Disclaimer