CVE-2026-11847 Overview
CVE-2026-11847 is a path traversal vulnerability [CWE-22] affecting the iVEC-IEI Virtualization Edge Computer developed by IEI Integration Corp. The flaw allows authenticated remote attackers to create directories in unintended system paths by submitting crafted input containing directory traversal sequences. Successful exploitation requires valid low-privilege credentials and network access to the affected device. The vulnerability impacts file system integrity but does not directly expose confidential data or disrupt availability.
Critical Impact
Authenticated remote attackers can create directories outside of intended boundaries on the iVEC-IEI Virtualization Edge Computer, potentially enabling persistence, configuration tampering, or staging for follow-on attacks.
Affected Products
- IEI Integration Corp iVEC-IEI Virtualization Edge Computer
- Refer to the TWCert Security Report for version-specific details
- Refer to the TWCert Vulnerability Advisory for additional product information
Discovery Timeline
- 2026-06-12 - CVE-2026-11847 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2026-11847
Vulnerability Analysis
The iVEC-IEI Virtualization Edge Computer fails to properly validate user-supplied path inputs before performing directory creation operations. An authenticated attacker can submit input containing traversal sequences such as ../ to escape the intended working directory. This permits creation of directories at arbitrary locations on the underlying file system.
The vulnerability is classified under [CWE-22] Improper Limitation of a Pathname to a Restricted Directory. While the flaw does not directly enable file content modification or disclosure, the ability to create directories in privileged locations can disrupt system operations or enable secondary attacks. EPSS data indicates a probability of 0.389% for exploitation within 30 days.
Root Cause
The root cause is insufficient input sanitization on path parameters accepted by an administrative interface. The application concatenates user-supplied values with a base directory path without canonicalizing the result or rejecting traversal sequences. As a result, directory creation requests resolve to unintended file system locations.
Attack Vector
Exploitation requires network access to the device and authentication as a low-privilege user. No user interaction is required beyond submitting the malicious request. The attacker supplies a path parameter containing sequences such as ../../etc/attacker_dir to a directory creation endpoint. The application processes the request and creates the directory at the resolved location outside the intended scope.
No verified proof-of-concept code is publicly available. See the TWCert Security Report for vendor-provided technical details.
Detection Methods for CVE-2026-11847
Indicators of Compromise
- Presence of unexpected directories in system paths such as /etc, /var, /tmp, or application configuration directories
- HTTP request logs containing ../ or URL-encoded variants like %2e%2e%2f in path parameters submitted to administrative endpoints
- Authentication events from low-privilege accounts followed by directory creation activity at unusual file system locations
Detection Strategies
- Inspect web access and application logs on the iVEC-IEI device for path parameters containing traversal sequences or encoded equivalents
- Establish a baseline of legitimate directory structures and alert on the creation of directories outside expected application working paths
- Correlate authenticated session activity with file system change events to identify suspicious directory creation by non-administrative accounts
Monitoring Recommendations
- Enable verbose logging on the iVEC-IEI administrative interface and forward logs to a centralized SIEM for analysis
- Deploy file integrity monitoring on the underlying host to detect unauthorized directory creation in sensitive locations
- Monitor authentication logs for low-privilege accounts performing unusual administrative actions against the edge computer
How to Mitigate CVE-2026-11847
Immediate Actions Required
- Restrict network access to the iVEC-IEI administrative interface to trusted management networks only
- Audit and rotate credentials for all accounts with access to the affected device, removing unnecessary low-privilege accounts
- Review the device file system for unexpected directories and remove any artifacts of unauthorized creation
Patch Information
IEI Integration Corp has published advisories through TWCert. Apply the vendor-supplied firmware update as referenced in the TWCert Security Report and the TWCert Vulnerability Advisory. Contact IEI Integration Corp directly for fixed firmware versions if not listed in the advisories.
Workarounds
- Place the iVEC-IEI device behind a network segmentation boundary that restricts access to authorized administrators
- Enforce multi-factor authentication on any upstream identity provider used to access the device management interface
- Apply web application firewall rules that block requests containing path traversal patterns such as ../ and %2e%2e%2f against the device administrative endpoints
# Configuration example
# Example WAF rule pattern to block traversal attempts (adapt to your WAF syntax)
SecRule REQUEST_URI|ARGS "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/)" \
"id:1009001,phase:2,deny,status:403,log,msg:'Path traversal attempt against iVEC-IEI'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
