What is the CVSS score of CVE-2026-0509?

CVE-2026-0509 has a CVSS 3.1 base score of 9.6 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Netweaver As Abap Kernel are affected by CVE-2026-0509?

A critical vulnerability in SAP NetWeaver allows authenticated users with limited privileges to execute remote function calls that should require higher authorization levels, potentially enabling…

How to fix or mitigate CVE-2026-0509?

Within 24 hours: Inventory all SAP NetWeaver ABAP instances in production and development; restrict S_RFC authorization assignments to essential personnel only; enable detailed RFC logging. Within 7 days: Conduct access review of all accounts with RFC execution capability; implement network segmentation to limit RFC traffic; escalate SAP support case for patch timeline. Within 30 days: Deploy compensating controls (RFC monitoring/restrictions); perform security assessment of RFC-dependent processes; establish vendor communication cadence for patch availability.

Netweaver As Abap Kernel CVE-2026-0509

CRITICAL

Missing Authorization (CWE-862)

2026-02-10 cna@sap.com

SAP Netweaver As Abap Kernel Netweaver As Abap Krnl64nuc Netweaver As Abap Krnl64uc

9.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.6 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 10, 2026 - 04:16 nvd

CRITICAL 9.6

DescriptionCVE.org

SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated, low-privileged user to perform background Remote Function Calls without the required S_RFC authorization in certain cases. This can result in a high impact on integrity and availability, and no impact on the confidentiality of the application.

AnalysisAI

Unauthorized Remote Function Call execution in SAP NetWeaver ABAP. Low-privileged users can execute background RFCs without proper authorization checks. CVSS 9.6.