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 3639264 was released on 11.11.2025 and deals with "[CVE-2025-42885] Missing authentication in SAP HANA 2.0 (hdbrss)" within SAP HANA Platform. We advice you to follow the instructions, to resolve information disclosure with a medium potential for exploitation in component HAN-DB-ENG.

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

Information disclosure is when an application fails to properly protect sensitive and confidential information from parties that are not supposed to have access to the subject matter in normal circumstances.
Carefully review every information disclosure vulnerablity in regards to disclosure obligations post-GDPR for ‘Personal data’ under the Data Protection Act 2018.

Risk specification

SAP HANA 2.0 (hdbrss) allows an unauthenticated attacker to invoke remote functions without authentication, resulting in unauthorized access to internal non-sensitive system information.

Solution

The hdbrss component has been removed from SAP HANA 2.0 to prevent unauthorized access to exposed services. Alternativly, the consulting team has proposed the following: "Delete the hdbrss binary or avoid starting the hdbrss service. These are temporary mitigations. SAP strongly recommends applying the patches.". 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 5.8 score.

The advisory is valid for

HDB 2.00 ¹³

Releated advisories

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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Notifications

Affected system SAP HANA Platform

CVSS 5.8

Component HAN-DB-ENG

Patch Day2025-11

Released on2025/11/11

SAP Note 3639264

Workaround Yes

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP HANA Platform

_CVSS
5.8

_Component
HAN-DB-ENG

_{Patch Day}
2025-11

_{Released
on}
2025/11/11

_{SAP Note}
3639264

_Workaround
Yes