Description
Due to a weak HMAC cryptography calculation when receiving an RFC callback in SAP NetWeaver and ABAP Platform (Application Server ABAP), an authenticated attacker with high privileges and access to a network segment between application servers on an SAP system could intercept network communication between application servers and change the identity of the caller, enabling the execution of unauthorized function calls on the target server with escalated privileges leading to High impact on Confidentiality, Integrity, and Availability of the application.
Published: 2026-11-10
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
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History

Tue, 10 Nov 2026 01:00:00 +0000

Type Values Removed Values Added
Description Due to a weak HMAC cryptography calculation when receiving an RFC callback in SAP NetWeaver and ABAP Platform (Application Server ABAP), an authenticated attacker with high privileges and access to a network segment between application servers on an SAP system could intercept network communication between application servers and change the identity of the caller, enabling the execution of unauthorized function calls on the target server with escalated privileges leading to High impact on Confidentiality, Integrity, and Availability of the application.
Title Weak Cryptography in SAP NetWeaver and ABAP Platform (Application Server ABAP)
Weaknesses CWE-328
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: sap

Published:

Updated: 2026-11-10T00:49:24.750Z

Reserved: 2026-10-13T03:49:31.799Z

Link: CVE-2026-109805

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-10T01:17:14.777

Modified: 2026-11-10T01:17:14.777

Link: CVE-2026-109805

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses