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 3677544 was released on 09.12.2025 and deals with "[CVE-2025-42877] Memory Corruption vulnerability in SAP Web Dispatcher, Internet Communication Manager and SAP Content Server" within Kernel / Web Dispatcher. We advice you to follow the instructions, to resolve denial of service (dos) with a high potential for exploitation in component BC-CST-IC.

According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process.

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 SAP Web Dispatcher, ICM, and SAP Content Server allows an attacker to send crafted network requests that corrupt memory, which can result in process crashes and repeated service interruptions.

Solution

The application corrects memory handling and enforces strict bounds checking and input validation across Web Dispatcher, ICM, and Content Server, ensuring that malformed requests are rejected and execution remains stable.

The advisory is valid for

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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.

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