CVE WatchNov 10, 2026

CVE-2026-109805

Due to a weak HMAC cryptography calculation when receiving an RFC callback in SAP NetWeaver and ABAP Platform (Application Server ABAP), an

CVSS

6.4

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 10, 2026 · Last modified: Nov 10, 2026 · CWE-328

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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