CVE-2026-66344 Overview
CVE-2026-66344 is an Uncontrolled Search Path Element vulnerability [CWE-427] in NetKids iMark, provided by Integrated Systems Technologies, Inc. The flaw allows an authenticated attacker with local access to execute arbitrary code with SYSTEM privileges. Exploitation requires local access, low privileges, and user interaction, but successful exploitation grants full compromise of confidentiality, integrity, and availability on the affected host.
Critical Impact
An authenticated local attacker can achieve arbitrary code execution with SYSTEM privileges by placing a malicious binary in an uncontrolled search path used by NetKids iMark.
Affected Products
- NetKids iMark by Integrated Systems Technologies, Inc.
Discovery Timeline
- 2026-08-05 - CVE-2026-66344 published to NVD
- 2026-08-05 - Last updated in NVD database
Technical Details for CVE-2026-66344
Vulnerability Analysis
CVE-2026-66344 is classified as an Uncontrolled Search Path Element weakness [CWE-427], commonly referred to as DLL search-order hijacking or binary planting. NetKids iMark loads a dependency without fully qualifying its path or restricting the directories searched during resolution. An authenticated local attacker who can write to a directory that appears earlier in the search order than the intended location can drop a malicious DLL or executable there. When the vulnerable application or its installer runs with elevated rights, the planted binary is loaded and executed in the SYSTEM security context. According to the vendor advisories, the issue also relates to installer folder access permissions and unquoted service path handling for files referenced by the product.
Root Cause
The root cause is improper control of the search path used to locate executable components. The product resolves DLLs or referenced executables without enforcing an absolute, protected path. Combined with permissive install-directory ACLs, non-privileged users can introduce attacker-controlled files into directories consulted during process startup.
Attack Vector
The attack vector is local. A user with valid credentials on the endpoint plants a malicious library or executable in a location that NetKids iMark searches before the legitimate path. User interaction is required to trigger loading, such as launching the application or invoking the installer. Once loaded, the attacker's code inherits the privileges of the calling process, which the advisory indicates is SYSTEM.
No public proof-of-concept or exploit code has been released for CVE-2026-66344 at the time of publication. Refer to the JVN Security Advisory and the ISTINC Security Issue Report for vendor technical details.
Detection Methods for CVE-2026-66344
Indicators of Compromise
- Unexpected DLL files present in the NetKids iMark installation directory or in directories writable by standard users.
- Child processes spawned by NetKids iMark or its installer running under the NT AUTHORITY\SYSTEM account without a matching legitimate parent lineage.
- Recently modified or newly created binaries in application working directories that do not match the vendor's file inventory.
Detection Strategies
- Hunt for module load events (Sysmon Event ID 7) where NetKids iMark processes load DLLs from user-writable paths rather than the trusted install path.
- Correlate process creation events with the loaded image path to identify search-order deviations from the vendor baseline.
- Alert on file writes by non-administrative users to directories referenced during NetKids iMark startup or update routines.
Monitoring Recommendations
- Enable command-line and image-load auditing on hosts running NetKids iMark and forward events to a centralized SIEM.
- Baseline the legitimate DLLs loaded by the application and alert on any deviation in hash or path.
- Monitor privilege transitions where a standard user session results in a SYSTEM-level process originating from NetKids iMark binaries.
How to Mitigate CVE-2026-66344
Immediate Actions Required
- Apply the fixes described in the vendor advisories from Integrated Systems Technologies as soon as they are deployed to your environment.
- Restrict interactive and local logon rights on hosts running NetKids iMark to trusted administrative users only.
- Audit the ACLs of the NetKids iMark installation directory and remove write permissions for non-administrative users.
Patch Information
Refer to the vendor guidance published by Integrated Systems Technologies, Inc. for remediation instructions. The advisories Service Executable File Path Not Enclosed in Quotes and DLL Load and Install Folder Access Permissions provide the recommended configuration and file-permission corrections.
Workarounds
- Reconfigure the NetKids iMark install directory so that only administrators can write to it, blocking binary planting by standard users.
- If any Windows service references an unquoted path pointing to NetKids iMark binaries, correct the service ImagePath to use fully quoted, absolute paths.
- Apply application allowlisting to restrict which DLLs and executables can load from user-writable locations.
# Configuration example: correct an unquoted service path and tighten ACLs
# 1. Inspect current service configuration
sc.exe qc "NetKidsiMarkService"
# 2. Repair the ImagePath so the executable path is quoted
sc.exe config "NetKidsiMarkService" binPath= "\"C:\Program Files\NetKids\iMark\iMark.exe\""
# 3. Remove write access for standard users on the install directory
icacls "C:\Program Files\NetKids\iMark" /inheritance:r
icacls "C:\Program Files\NetKids\iMark" /grant:r "Administrators:(OI)(CI)F" "SYSTEM:(OI)(CI)F" "Users:(OI)(CI)RX"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
