CVE-2026-109805SAP_SE SAP NetWeaver and ABAP Platform (Application Server ABAP) vulnerability
CVE-2026-109805 is a vulnerability in SAP_SE SAP NetWeaver and ABAP Platform (Application Server ABAP), rated medium (6.4 on CVSS 3.1).
Why this priority: Medium severity, with no exploitation signal.
Published · Updated · NVD status: Received
What it is
The record does not classify the weakness yet; the description below says what the reporter found.
How it is reached
An attacker can exploit it from the same local network segment, with an administrator account, and nobody has to click anything. Success also depends on conditions the attacker does not fully control.
What an attacker gains
A successful attack can read the data it protects, change data or behaviour and take it offline.
Is it being exploited?
There is no public report of exploitation yet.
What to do
- No fixed version is listed yet. Find every place SAP_SE SAP NetWeaver and ABAP Platform (Application Server ABAP) runs, watch the references for a fix, and plan a replacement if it is no longer supported.
- Segment the networks that can reach it.
Description from NVD
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.
What this means for your architecture.
A CVE names a product. Whether it matters depends on where that product sits in your systems: what reaches it, which trust boundary it guards and what it can reach once compromised. Veriom maps your components, their relationships and your trust boundaries from your code, cloud and delivery evidence, so you can see where a component like this sits. The radar itself does not look at your systems.
Components it touches
- SAP_SE SAP NetWeaver and ABAP Platform (Application Server ABAP). Start from where it runs and what it is connected to.
Trust boundaries in play
- Local network segment. The attacker must share a network segment with the target.
Questions to answer about your own systems
- Where does SAP_SE SAP NetWeaver and ABAP Platform (Application Server ABAP) run in your systems, and at which version?
- Which network segments can reach them?
- What can it reach once compromised: which data stores, secrets and services?
Sources
- CVE records and CVSS scores from the NVD CVE API. This product uses the NVD API but is not endorsed or certified by the NVD.
- Exploitation status from CISA’s Known Exploited Vulnerabilities catalog.
- Exploit likelihood from FIRST’s Exploit Prediction Scoring System (EPSS), refreshed daily.
- Explanations are written by Veriom from fixed templates over each record’s data, not by a person reviewing each CVE. Descriptions are quoted from the records as published.