- 19
- March
Every second Tuesday of the month, SAP releases its "Security Patch Day" — a list of discovered vulnerabilities and their fixes. For March 2026, this update is particularly serious because it includes a Critical (CVSS 9.8) vulnerability in SAP NetWeaver Enterprise Portal, a system used by large organizations and government agencies worldwide.
What does CVSS 9.8 mean? On a risk scale of 0–10, 9.8 is the highest in practical terms — meaning attackers can compromise the system remotely, without logging in, without any privileges, and without requiring any user interaction.
If your organization uses SAP and has not yet patched — your ERP system is currently exposed to attack.
March 2026 Threat Summary:
- Total Security Notes: 15 items
- Critical (CVSS 9.0+): 2 items
- High (CVSS 7.0–8.9): 5 items
- Primary systems affected: SAP NetWeaver Enterprise Portal, SAP Quotation Management Insurance
- Risk: Remote Code Execution without authentication
Critical Vulnerability #1 — SAP NetWeaver Enterprise Portal (CVSS 9.8)
This vulnerability resides in the Knowledge Management component of SAP NetWeaver Enterprise Portal, allowing attackers to:
- Upload malicious files (Malicious File Upload) without any authentication
- Execute code on the server (Remote Code Execution) from a remote location
- Access all data on the SAP system — including financial, HR, and procurement data
SAP NetWeaver Enterprise Portal is used by large organizations as the front door (Portal) for logging into various SAP systems. If this vulnerability is exploited, attackers gain the highest level of access immediately.
| Detail | Information |
|---|---|
| CVE Number | CVE-2026-24523 |
| CVSS Score | 9.8 Critical |
| Affected Systems | SAP NetWeaver Enterprise Portal 7.50, 7.40 |
| Vulnerability Type | Unrestricted File Upload → Remote Code Execution |
| Authentication Required? | No (Unauthenticated) |
| SAP Security Note | 3548234 |
Critical Vulnerability #2 — SAP Quotation Management Insurance (CVSS 9.1)
The second critical vulnerability exists in SAP Quotation Management Insurance, widely used in the insurance and financial services sectors:
- Critical-level SQL Injection — attackers can extract all data from the database
- Data modification — change figures in the system without leaving a trace (if no Audit Log is in place)
- Data deletion — destroy all historical records entirely
Notable High-Severity Vulnerabilities (CVSS 7.0–8.9)
| System | CVSS | Type | Impact |
|---|---|---|---|
| SAP S/4HANA Finance | 8.8 | Privilege Escalation | Regular users can escalate privileges to Admin |
| SAP Business One | 8.1 | Directory Traversal | Read unauthorized files on the server |
| SAP GUI for Windows | 7.3 | DLL Hijacking | Install malware via SAP GUI |
| SAP HANA Database | 7.1 | Information Disclosure | Expose credentials in error messages |
| SAP Enable Now | 7.0 | Cross-Site Scripting (XSS) | Steal user session tokens |
SAP Patch Day History — Why Does This Keep Happening Every Year?
SAP has been releasing security patches every month for many years, and each year typically sees at least 2–3 Critical-level vulnerabilities. This reflects a structural problem with large Legacy ERP systems that have massive codebases difficult to audit line by line.
Root causes behind SAP's recurring vulnerabilities:
- 50+ year-old codebase — portions written in ABAP since the 1970s, extremely difficult to security audit
- Hundreds of modules — each written by different teams, with inconsistent security standards across modules
- High customization — each organization adds custom code, continuously introducing new vulnerabilities
- Third-party integrations — SAP connects with many external systems; each integration is a new attack surface
What Must SAP-Using Organizations Do Immediately?
If your organization uses SAP NetWeaver or SAP Business Suite, here are the steps to take as quickly as possible:
| Step | Action | Urgency |
|---|---|---|
| 1 | Verify your SAP version in use — compare against the list of affected versions | Today |
| 2 | Download SAP Note 3548234 and apply the patch to SAP NetWeaver Portal | Within 24–48 hours |
| 3 | Review access logs for SAP NetWeaver Portal over the past 30 days | Within 3 days |
| 4 | Apply all High-severity Security Notes (5 items) | Within 1 week |
| 5 | Run SAP Security Audit (transaction SM20) to detect abnormal behavior | Within 2 weeks |
Lessons for Organizations Evaluating ERP — Security Comes First
This incident is a clear example that choosing an ERP is not just about features and price — you must also evaluate the vendor's Security Architecture and Patch Management Policy.
Key questions to ask before selecting an ERP:
- Does the vendor have a clear Security Patch policy and how frequently are patches released?
- When a critical vulnerability is discovered, how quickly are customers notified?
- Can the patch installation process be done independently or must you wait for the vendor?
- Does the system have a complete Audit Trail with full historical traceability?
- If attacked, what is the Incident Response plan?
Comparison: SAP vs. ERP Suited for Thai Organizations
| Aspect | SAP ECC/S4HANA | Saeree ERP |
|---|---|---|
| Security Patch | Must wait for monthly SAP Patch Day — typically delayed 30–90 days | Emergency patches can be issued immediately, no fixed cycle required |
| Codebase | Legacy ABAP 50+ years old, difficult to security audit | Modern stack (Java/PostgreSQL) designed with security from day one |
| Patch Cost | Requires SAP Basis specialist, high cost | Grand Linux team handles it — included in support contract |
| Audit Trail | Requires additional configuration — not enabled by default | Records every transaction from day one — no configuration needed |
| Vendor Support (Thai language) | Through Thai partner — slow response time | Thai team, direct communication, response within 4 hours |
| Pricing | License + Maintenance + Implementation: tens of millions of baht | Suitable for government budgets and SMEs — no expensive annual license fee |
"A CVSS 9.8 vulnerability in an ERP is not just an IT problem — it is a risk that your entire organization's financial, HR, and procurement data could be stolen in a single night."
— Security Team, Grand Linux Solution
Is Your ERP System Secure Enough?
Saeree ERP is built on a Modern Stack designed with security from day one — not patches layered over 50-year-old code.
Request a Free DemoTel. 02-347-7730 | sale@grandlinux.com
References
- ERP Today. "SAP Security Patch Day March 2026." erp.today
- SAP Security. "SAP Security Notes March 2026 — Overview." support.sap.com
- SecurityWeek. "SAP Patches Critical Vulnerabilities in NetWeaver Portal." 2026.
- NIST NVD. "CVE-2026-24523 Detail." nvd.nist.gov
