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 3674774
was released on
10.02.2026 and deals with
"[CVE-2026-0509] Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform" within Kernel.
We advice you to follow the instructions, to resolve
missing authorization check
with a
hot news potential for exploitation
in component BC-MID-RFC.
According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as part of maintenance.
Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.
Risk specification
SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker to execute background Remote Function Calls without the required S_RFC authorization, potentially leading to full system compromise.
Solution
The relevant authorization checks have been strengthened to ensure that only users with the appropriate permissions are able to execute the RFC operations.
The advisory is valid for
- KERNEL 7.22 35
- KERNEL 7.53 57
- KERNEL 7.54 36
- KERNEL 7.77 53
- KERNEL 7.89 36
- KERNEL 7.93 30
- KERNEL 9.16 8
- KERNEL 9.18 2
- KERNEL 9.19
- KRNL64NUC 7.22 41
- KRNL64NUC 7.22EXT 41
- KRNL64UC 7.22 41
- KRNL64UC 7.22EXT 41
- KRNL64UC 7.53 57
