CVE-2026-11845 Overview
CVE-2026-11845 is an OS Command Injection vulnerability [CWE-78] in the iVEC-IEI Virtualization Edge Computer developed by IEI Integration Corp. The flaw allows authenticated remote attackers with high privileges to inject arbitrary operating system commands through the device's management interface. Successful exploitation results in command execution in the underlying operating system context.
The vulnerability was disclosed through the Taiwan Computer Emergency Response Team (TWCERT) and published to the National Vulnerability Database on June 12, 2026.
Critical Impact
Privileged remote attackers can execute arbitrary OS commands on affected iVEC-IEI Virtualization Edge Computer devices, leading to full compromise of confidentiality, integrity, and availability of the host system.
Affected Products
- IEI Integration Corp iVEC-IEI Virtualization Edge Computer
Discovery Timeline
- 2026-06-12 - CVE-2026-11845 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2026-11845
Vulnerability Analysis
The iVEC-IEI Virtualization Edge Computer contains an OS Command Injection weakness classified under [CWE-78]. The device fails to properly neutralize special elements supplied by an authenticated user before passing them to an operating system shell or command interpreter. Attacker-controlled input is concatenated into commands and executed with the privileges of the underlying service.
Exploitation requires network access to the management interface and a high-privilege account on the device. Once those preconditions are met, an attacker can append shell metacharacters such as ;, |, or && to legitimate parameters to chain arbitrary commands. Execution occurs without user interaction.
The impact spans full compromise of the host. Attackers can read or modify configuration data, pivot into virtualized workloads hosted on the edge appliance, and disrupt operations. Edge computing devices frequently sit at trust boundaries between operational technology and enterprise networks, magnifying the downstream risk.
Root Cause
The root cause is insufficient input validation and sanitization on a command-handling code path that invokes a system shell. User-supplied parameters reach system(), exec(), or an equivalent shell invocation without being escaped or restricted to an allowlist of safe values.
Attack Vector
The attack vector is network-based. An attacker authenticated as a high-privilege user submits crafted input containing shell metacharacters to a vulnerable endpoint. The device executes the injected commands as part of its normal request processing. Refer to the TWCERT Advisory for vendor-confirmed technical context.
No public proof-of-concept exploit code is available at the time of writing, and the vulnerability is not listed on the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2026-11845
Indicators of Compromise
- Unexpected child processes spawned by management or web service daemons on iVEC-IEI devices.
- Outbound network connections from the edge appliance to unknown infrastructure following administrative API requests.
- Shell metacharacters such as ;, |, `, or $() appearing in HTTP request parameters in device logs.
- New or modified cron jobs, startup scripts, or SSH authorized_keys entries on the device.
Detection Strategies
- Inspect HTTP request bodies and query strings sent to the device management interface for shell metacharacters in parameters that should accept only alphanumeric values.
- Correlate administrative authentication events with subsequent process creation on the device to identify command injection following privileged login.
- Baseline normal process trees of the management daemon and alert on deviations such as sh, bash, wget, curl, or nc child processes.
Monitoring Recommendations
- Forward device syslog and audit logs to a centralized SIEM and retain them for incident review.
- Monitor administrative account usage and flag logins from unexpected source addresses or outside maintenance windows.
- Alert on configuration file modifications and unexpected outbound traffic from edge appliances.
How to Mitigate CVE-2026-11845
Immediate Actions Required
- Restrict network access to the iVEC-IEI management interface to a dedicated administrative VLAN or jump host.
- Rotate credentials for all privileged accounts on affected devices and enforce strong, unique passwords.
- Audit existing administrative accounts and remove any that are no longer required.
- Review device logs for signs of prior exploitation attempts using shell metacharacters.
Patch Information
Consult IEI Integration Corp and the TWCERT Advisory for the latest firmware updates addressing CVE-2026-11845. Apply vendor-supplied patches as soon as they are validated in a test environment. Additional regional guidance is available in the TWCERT Warning.
Workarounds
- Place affected devices behind a firewall that limits management access to known administrative source addresses.
- Disable any unused management services or remote administration features on the device.
- Apply network segmentation to prevent lateral movement from the edge appliance into production networks.
# Example: restrict device management access using iptables on an upstream gateway
iptables -A FORWARD -p tcp -s 10.0.10.0/24 -d 192.0.2.50 --dport 443 -j ACCEPT
iptables -A FORWARD -p tcp -d 192.0.2.50 --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
