Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
Sources: National Vulnerability Database, CISA KEV, Exploit-DB
CVE-2026-45449 Overview
CVE-2026-45449 is an OS command injection vulnerability [CWE-78] in Unitronics UniStream Pro programmable logic controllers running the UniLogic programming environment. The flaw allows an authenticated attacker with low privileges to inject operating system commands through improperly sanitized input. Successful exploitation gives attackers the ability to execute arbitrary commands on the controller, with high impact to confidentiality and integrity. The vulnerability affects Unitronics UniStream Pro models B10 and C10 running UniLogic versions prior to 1.41.329.
Critical Impact
Authenticated attackers can execute arbitrary OS commands on industrial controllers, risking manipulation of operational technology processes.
Affected Products
- Unitronics UniStream Pro B10 (UniLogic versions prior to 1.41.329)
- Unitronics UniStream Pro C10 (UniLogic versions prior to 1.41.329)
- UniLogic programming environment prior to version 1.41.329
Discovery Timeline
- 2026-10-15 - CVE-2026-45449 published to NVD
- 2026-10-16 - Last updated in NVD database
Technical Details for CVE-2026-45449
Vulnerability Analysis
The vulnerability stems from improper neutralization of special elements passed to an operating system command interpreter on the UniStream Pro controller. User-supplied input reaches a command execution context without adequate sanitization or allow-list validation. An attacker who holds valid low-privilege credentials can craft input containing shell metacharacters to break out of the intended command structure.
UniStream Pro controllers (B10 and C10) serve as programmable logic controllers in industrial environments. Compromise of these devices can allow attackers to influence physical processes, read sensitive operational data, or disrupt availability of control logic. The attack is network-reachable, which broadens the exposure where controllers are accessible from engineering workstations or operational networks.
Root Cause
The root cause is classified as CWE-78: Improper Neutralization of Special Elements used in an OS Command. UniLogic firmware prior to 1.41.329 passes attacker-controllable strings into an OS command execution path without stripping or escaping shell metacharacters such as ;, |, &, and backticks. This allows command concatenation outside the intended parameter.
Attack Vector
Exploitation requires network access to the controller's management interface and valid low-privilege authentication. The attacker submits a crafted request containing shell metacharacters within a parameter that is subsequently passed to the operating system. The injected commands execute in the context of the service handling the request on the UniStream Pro device. No user interaction is required for the attack to succeed.
No verified public proof-of-concept code is available at this time. Refer to the Israeli Government CVE Advisories for official technical details.
Stop Remote Code Execution Before It Runs
Singularity™ Endpoint detects and blocks exploit attempts at machine speed, including zero-days and novel attack techniques.
Stop Exploit AttemptsDetection Methods for CVE-2026-45449
Indicators of Compromise
- Unexpected process execution or shell invocations originating from UniLogic services on UniStream Pro controllers.
- HTTP or management-protocol requests containing shell metacharacters such as ;, |, &, $(), or backticks in parameter values.
- Authentication events from low-privilege accounts followed by anomalous command execution or configuration changes on the controller.
Detection Strategies
- Inspect network traffic to UniStream Pro management interfaces for payloads containing command injection patterns using IDS or deep packet inspection rules.
- Correlate authentication logs with configuration changes and process activity on controllers to flag deviations from engineering workflows.
- Baseline normal engineering station behavior and alert on sessions originating from unexpected hosts or during off-hours.
Monitoring Recommendations
- Enable logging on the UniStream Pro device and forward events to a central SIEM for correlation.
- Monitor segmented OT network boundaries for any unauthorized access attempts targeting UniLogic ports.
- Track firmware and UniLogic version inventory to identify unpatched controllers running versions prior to 1.41.329.
How to Mitigate CVE-2026-45449
Immediate Actions Required
- Upgrade UniLogic to version 1.41.329 or later on all UniStream Pro B10 and C10 controllers.
- Restrict network access to UniStream Pro management interfaces to authorized engineering workstations only.
- Rotate credentials for all accounts able to authenticate to affected controllers and remove unused low-privilege accounts.
Patch Information
Unitronics addresses this vulnerability in UniLogic version 1.41.329. Operators should download the updated UniLogic package from Unitronics and apply it to all UniStream Pro B10 and C10 devices. Consult the Israeli Government CVE Advisories for official patch references and vendor guidance.
Workarounds
- Place affected controllers behind a firewall that restricts management access to a defined allow-list of engineering hosts.
- Enforce network segmentation between IT and OT environments to limit lateral movement to UniStream Pro devices.
- Disable or block remote management access from untrusted networks until the patch is deployed.
# Example firewall rule to restrict UniLogic management access
# Replace <ENG_WS_IP> and <CONTROLLER_IP> with your environment values
iptables -A FORWARD -s <ENG_WS_IP> -d <CONTROLLER_IP> -p tcp --dport 20256 -j ACCEPT
iptables -A FORWARD -d <CONTROLLER_IP> -p tcp --dport 20256 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
Sources: National Vulnerability Database, CISA KEV, Exploit-DB
