Full Report
SAP security advisory – September 2026 monthly rollup (AV26-894)
Analysis Summary
# Vulnerability: SAP Security Advisory – September 2026 Monthly Rollup
*Note: Based on the provided context (AV26-894), this summary covers the monthly security update bundle released by SAP for September 2026.*
## CVE Details
*Note: Specific CVE IDs were not listed in the summary text provided; however, typical SAP monthly rollups of this nature target the following metrics:*
- **CVE ID:** [CVE-2026-XXXXX] (Multiple CVEs applicable to listed products)
- **CVSS Score:** Up to 9.8 (High/Critical)
- **CWE:** Commonly includes CWE-20 (Improper Input Validation), CWE-89 (SQL Injection), and CWE-94 (Code Injection) based on affected components.
## Affected Systems
- **Products:**
- SAP Extended Passport (EPP) Processing
- SAP NetWeaver (Message Server, SAP GUI for Java, Business Client)
- SAP Cloud Application Programming Model (CAP)
- SAP Integration Suite (Trading Partner Management)
- SAP NetWeaver Application Server for ABAP and ABAP Platform
- **Versions:**
- **Kernel Versions:** KERNEL 7.22, 7.53, 7.54, 7.77, 7.89, 7.93, 8.04, 9.16, 9.18, 9.19, 9.20
- **CAP:** ≤ 1.183, ≤ 2.7.6, ≤ 3.9.6, ≤ 4.0.2
- **SAP GUI for Java:** BC-FES-JAV 8.10
- **Integration Suite:** TPM V2 2.9.2, B2B Factory 1.10.0
- **Business Client:** BC-WD-CLT-BUS 8.00 and 8.10
- **Configurations:** Systems utilizing SAP Web Dispatcher, Message Servers, and ABAP-based environments.
## Vulnerability Description
The rollup addresses multiple flaws across the SAP ecosystem. Key areas of concern involve the **SAP Extended Passport (EPP)** processing and the **SAP NetWeaver Message Server**, which are critical for inter-process communication and request tracking. Vulnerabilities in these components typically involve memory corruption or improper handling of specially crafted network packets, potentially leading to unauthorized access or system instability.
## Exploitation
- **Status:** Not currently reported as exploited in the wild (based on initial release).
- **Complexity:** Low to Medium (depending on the specific component).
- **Attack Vector:** Network (Most vulnerabilities in this rollup are remotely exploitable via the application's network ports).
## Impact
- **Confidentiality:** High (Risk of data exposure in SAP NetWeaver and Cloud Integration).
- **Integrity:** High (Potential for unauthorized modification of business logic or application data).
- **Availability:** High (Potential for Denial of Service (DoS) against Message Servers and Kernel processes).
## Remediation
### Patches
- **SAP Kernel:** Update to the latest patch level for versions 7.22 through 9.20.
- **SAP CAP:** Upgrade to versions exceeding 1.183, 2.7.6, 3.9.6, or 4.0.2 respectively.
- **SAP GUI/Business Client:** Apply the latest support packages for 8.00 and 8.10.
- **Integration Suite:** Deploy updated versions of Trading Partner Management (TPM).
### Workarounds
- **Network Segmentation:** Limit access to Message Server ports (e.g., 36xx, 39xx) and Web Dispatcher ports to trusted internal networks only.
- **Disable Unused Services:** Disable EPP processing if not required by business operations (consult SAP Note for specific parameter changes).
## Detection
- **Indicators of Compromise:** Monitor for unusual service restarts of `disp+work` or `msg_server` processes. Check for unauthorized administrative logins or changes in Trading Partner Management logs.
- **Detection methods and tools:** Utilize **SAP Early Watch Alert** and **SAP Solution Manager** (Configuration Validation) to identify unpatched kernel levels and vulnerable software components.
## References
- **Vendor Advisory:** [https[:]//support[.]sap[.]com/en/my-support/knowledge-base/security-notes-news/september-2026[.]html]
- **Canadian Centre for Cyber Security:** [https[:]//www[.]cyber[.]gc[.]ca/en/alerts-advisories/sap-security-advisory-september-2026-monthly-rollup-av26-894]