CVE-2026-109805

MediumCVSS 6.4/10Last modified Nov 12, 2026

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.

Metrics

CVSS 3.1 6.4/10CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-328

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Nov 10, 2026
Last modified: Nov 12, 2026
NVD status: Awaiting Analysis

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