Full Report
A number of critical vulnerabilities impacting products from Adobe, Fortinet, Microsoft, and SAP have taken center stage in April's Patch Tuesday releases. Topping the list is an SQL injection vulnerability impacting SAP Business Planning and Consolidation and SAP Business Warehouse (CVE-2026-27681, CVSS score: 9.9) that could result in the execution of arbitrary database
Analysis Summary
# Vulnerability: April 2026 Patch Tuesday Critical Flaws (SAP, Adobe, Fortinet, Microsoft)
## CVE Details
- **CVE ID**: CVE-2026-27681 (Primary focus), CVE-2026-34621, CVE-2026-39813, CVE-2026-39808, CVE-2026-32201
- **CVSS Score**: 9.9 (Critical) for lead SAP vulnerability
- **CWE**: CWE-89 (SQL Injection), CWE-22 (Path Traversal), CWE-78 (OS Command Injection)
## Affected Systems
- **SAP**: Business Planning and Consolidation (BPC) and Business Warehouse (BW)
- **Adobe**: Acrobat Reader, ColdFusion (2023 and 2025 releases)
- **Fortinet**: FortiSandbox (JRPC API components)
- **Microsoft**: SharePoint Server
## Vulnerability Description
The lead vulnerability (**CVE-2026-27681**) is a critical SQL injection flaw within an ABAP program. It allows a low-privileged user to upload a file containing arbitrary SQL statements. Once uploaded, the system executes these commands against the underlying BW/BPC data stores. This can lead to unauthorized database access, bypassing standard application-level security controls.
## Exploitation
- **Status**:
- **SAP (CVE-2026-27681)**: Not currently reported as exploited in the wild.
- **Adobe Acrobat Reader (CVE-2026-34621)**: **Actively exploited in the wild.**
- **Microsoft SharePoint (CVE-2026-32201)**: **Actively exploited in the wild.**
- **Complexity**: Low to Medium
- **Attack Vector**: Network (Remote)
## Impact
- **Confidentiality**: Critical (Complete database extraction/Sensitive data theft)
- **Integrity**: Critical (Modification of planning figures, reports, and financial data)
- **Availability**: Critical (Deletion of consolidation data or database corruption)
## Remediation
### Patches
- **SAP**: Apply security notes released in the April 2026 Patch Day.
- **FortiSandbox**:
- CVE-2026-39813: Update to versions 4.4.9 or 5.0.6.
- CVE-2026-39808: Update to version 4.4.9.
- **Adobe ColdFusion**: Update to latest versions of ColdFusion 2023/2025.
- **Adobe Acrobat**: Update to latest version immediately due to active exploitation.
### Workarounds
- **SAP**: Restrict file upload permissions for low-privileged users and monitor ABAP program executions related to data uploads.
- **Microsoft SharePoint**: Ensure robust identity management and MFA to limit the impact of spoofing.
## Detection
- **Indicators of Compromise**:
- Unusual SQL query patterns in SAP database logs.
- Unexpected file uploads to BW/BPC program directories.
- Unauthorized API calls to FortiSandbox JRPC endpoints.
- **Detection methods and tools**:
- Use SIEM tools to monitor for SQL injection attempts in application logs.
- Deploy EDR to monitor for suspicious child processes spawned by Acrobat Reader.
## References
- SAP Security Advisory: [https://support.sap.com/en/my-support/knowledge-base/security-notes-news/april-2026.html]
- Onapsis Research: [https://onapsis.com/blog/sap-security-notes-april-2026-patch-day/]
- Fortinet PSIRT: [https://fortiguard.fortinet.com/psirt/FG-IR-26-112]
- Adobe Security Bulletins: [https://helpx.adobe.com/security/security-bulletin.html]