CVE-2026-44763 Overview
CVE-2026-44763 is a path traversal vulnerability [CWE-22] in SAP Manufacturing Integration and Intelligence (SAP MII). The flaw stems from insufficient file path validation in certain application functions. A privileged, authenticated attacker can supply specially crafted input to write files outside the intended directory. Exploitation also requires a legitimate user to subsequently access the attacker-influenced content, and success depends on conditions outside the attacker's control. Successful exploitation can impact other components and result in high impact to confidentiality, integrity, and availability. The vulnerability is tracked with a CVSS 3.1 base score of 7.6 and is network-accessible, but requires high privileges, high attack complexity, and user interaction.
Critical Impact
An authenticated attacker can write files outside the intended directory in SAP MII, potentially compromising confidentiality, integrity, and availability of connected components.
Affected Products
- SAP Manufacturing Integration and Intelligence (SAP MII)
- Specific version details: refer to SAP Note #3759854
- Deployments exposing SAP MII functions to authenticated users
Discovery Timeline
- 2026-08-11 - CVE-2026-44763 published to the National Vulnerability Database (NVD)
- 2026-08-11 - SAP Security Patch Day advisory referenced via SAP Note #3759854
- 2026-08-11 - Last updated in NVD database
Technical Details for CVE-2026-44763
Vulnerability Analysis
CVE-2026-44763 is a path traversal weakness classified under [CWE-22] (Improper Limitation of a Pathname to a Restricted Directory). Certain SAP MII functions accept user-controlled input used to construct file paths without adequate validation. An attacker who already holds high privileges within the application can inject traversal sequences to redirect writes outside the intended directory. The vulnerability requires user interaction, meaning a legitimate user must later access the attacker-influenced content for full exploitation to occur. The scope is changed, indicating the impact can extend beyond the vulnerable component to other systems that trust the manipulated files.
Root Cause
The root cause is insufficient file path validation in specific SAP MII functions. The application does not properly canonicalize or restrict user-supplied path components before performing file write operations. As a result, sequences such as ../ or absolute path references can traverse out of the expected working directory.
Attack Vector
Exploitation occurs over the network against an SAP MII instance. The attacker must first authenticate with high privileges. The attacker then submits crafted input to a vulnerable function, causing the application to write attacker-controlled content to an arbitrary location on the server file system. The exploit chain completes when a legitimate user accesses the planted file, triggering the intended secondary impact on connected components.
Because no verified public exploit code is available, refer to the SAP Note #3759854 and the SAP Security Patch Day advisory for authoritative technical details.
Detection Methods for CVE-2026-44763
Indicators of Compromise
- Unexpected files written to SAP MII directories outside standard application paths
- Application or file system audit entries containing traversal sequences such as ..\ or ../ in path parameters
- Privileged SAP MII user sessions performing unusual file-write operations or configuration changes
- Access by legitimate users to newly created or recently modified files in shared SAP MII directories
Detection Strategies
- Enable and centralize SAP MII application logs and inspect requests with path parameters for traversal patterns.
- Correlate file system change events on SAP MII hosts with authenticated user sessions to identify anomalous writes.
- Monitor privileged account activity in SAP MII for behavior that deviates from established baselines.
- Alert when files are created in directories not expected to receive user-generated content.
Monitoring Recommendations
- Forward SAP MII, operating system, and file integrity monitoring logs to a centralized SIEM for correlation.
- Baseline expected file write locations and generate alerts on writes outside those paths.
- Track sessions of high-privilege SAP MII accounts and flag anomalies in function usage.
- Review access logs for legitimate users interacting with files written by privileged accounts shortly after modification.
How to Mitigate CVE-2026-44763
Immediate Actions Required
- Apply the fix documented in SAP Note #3759854 as soon as possible.
- Review the list of SAP MII users with high-privilege roles and remove unnecessary access.
- Audit SAP MII file system directories for unauthorized or unexpected files created before patching.
- Rotate credentials for privileged SAP MII accounts if compromise is suspected.
Patch Information
SAP addressed CVE-2026-44763 as part of SAP Security Patch Day. Administrators should consult SAP Note #3759854 for affected versions and the corresponding patch, and review the SAP Security Patch Day portal for related updates.
Workarounds
- Restrict network access to SAP MII interfaces to trusted administrative networks only.
- Enforce least privilege for SAP MII roles and limit assignment of high-privilege functions.
- Enable file integrity monitoring on SAP MII installation and content directories.
- Increase logging verbosity for file operations and privileged function calls until the patch is deployed.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
