SAP Netweaver JAVA Enterprise Portal – Translation Worklist Authentication Insecure Deserialization
September 17, 2026
SAP Netweaver JAVA Enterprise Portal – Translation Worklist Authentication Insecure Deserialization
Impact on Business
A remote, authenticated attacker can exploit an insecure deserialization vulnerability to execute arbitrary operating system commands on the target system. This has a critical impact on the confidentiality, integrity, and availability of the system and its business applications, potentially allowing full system compromise.
Vulnerability Details
A Java deserialization vulnerability exists in the SAP Enterprise Portal Federated Portal Network. An authenticated attacker with specific privileges can send maliciously crafted serialized data to a specific endpoint within the Translation Worklist component. The application insecurely deserializes this data without proper validation, which can ultimately lead to the execution of arbitrary operating system commands on the target server with the privileges of the SAP administrator user.
Solution
SAP has released SAP Note 3621236 which provides patched versions of the affected components.
The patches can be downloaded from https://me.sap.com/notes/3621236.
Onapsis strongly recommends SAP customers to download the related security fixes and apply them to the affected components in order to reduce business risks.
Report Timeline
- 06/03/2025: Onapsis reports vulnerability to SAP
- 07/08/2025: SAP issues the patch
References
Advisory Information
- Public Release Date: 09/17/2026
- Security Advisory ID: ONAPSIS-2026-0012
- Researcher(s): Ignacio Favro
Vulnerability Information
- Vendor: SAP
- Affected Components: SAP Enterprise Portal (Check SAP Note 3621236 for detailed information on affected releases)
- Vulnerability Class: CWE-502: Deserialization of Untrusted Data
- CVSS v3 score: 9.1 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
- Risk Level: Critical
- Assigned CVE: CVE-2025-42964
- Vendor patch Information: SAP Security NOTE 3621236
Affected Components Description
The vulnerability affects SAP NetWeaver JAVA 7.50, specifically within the Enterprise Portal Federated Portal Network component.
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Onapsis Research Labs provides the industry analysis of key security issues that impact mission-critical systems and applications. Delivering frequent and timely security and compliance advisories with associated risk levels, Onapsis Research Labs combine in-depth knowledge and experience to deliver technical and business-context with sound security judgment to the broader information security community.
Find all reported vulnerabilities at: https://github.com/Onapsis/vulnerability_advisories
This advisory is licensed under a Creative Commons 4.0 BY-ND International License