CVE-2025-0591
📋 TL;DR
An out-of-bounds read vulnerability in CX-Programmer allows attackers to read sensitive memory contents or cause application crashes. This affects users of Omron's CX-Programmer software for PLC programming. Successful exploitation could lead to information disclosure or denial of service.
💻 Affected Systems
- Omron CX-Programmer
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive information from memory including credentials, configuration data, or proprietary logic, potentially leading to industrial espionage or system compromise.
Likely Case
Application crashes causing denial of service for PLC programming operations, disrupting maintenance and programming activities.
If Mitigated
Limited impact with proper network segmentation and access controls preventing unauthorized access to engineering workstations.
🎯 Exploit Status
Exploitation requires access to the target system and knowledge of the vulnerability. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2025-003_en.pdf
Restart Required: No
Instructions:
1. Download the latest version from Omron's official website. 2. Install the update following vendor instructions. 3. Verify installation by checking version number.
🔧 Temporary Workarounds
Network Segmentation
allIsolate engineering workstations running CX-Programmer from general network traffic
Access Control
allRestrict access to CX-Programmer installations to authorized personnel only
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Apply principle of least privilege and restrict user access to CX-Programmer
🔍 How to Verify
Check if Vulnerable:
Check installed CX-Programmer version against vendor advisory. Review system logs for unexpected crashes or memory access errors.Check Version:
Check version through CX-Programmer Help > About menu or Windows Programs and FeaturesVerify Fix Applied:
Verify installed version matches or exceeds the patched version specified in vendor advisory. Test application functionality.📡 Detection & Monitoring
Log Indicators:
- Application crashes of CX-Programmer
- Memory access violation errors in Windows Event Logs
- Unexpected process termination
Network Indicators:
- Unusual network connections to engineering workstations
- Attempts to access CX-Programmer from unauthorized systems
SIEM Query:
EventID=1000 OR EventID=1001 Source='CX-Programmer' OR ProcessName='CX-Programmer.exe'