CVE-2026-1226
📋 TL;DR
This CVE describes an Improper Control of Generation of Code vulnerability in Schneider Electric products that process TGML graphics files. Attackers can execute arbitrary code by tricking users or systems into opening maliciously crafted TGML files. Organizations using affected Schneider Electric software are at risk.
💻 Affected Systems
- Schneider Electric software with TGML processing capabilities
⚠️ 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
Full system compromise with remote code execution leading to data theft, ransomware deployment, or industrial control system manipulation.
Likely Case
Local privilege escalation or limited code execution within the application context, potentially leading to lateral movement.
If Mitigated
Application crash or denial of service if exploit attempts are blocked by security controls.
🎯 Exploit Status
Requires user to open malicious TGML file or system to process it; no public exploit details available yet
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific fixed versions
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-041-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-041-02.pdf
Restart Required: Yes
Instructions:
1. Download patch from Schneider Electric portal
2. Apply patch according to vendor instructions
3. Restart affected systems
4. Verify patch installation
🔧 Temporary Workarounds
Block TGML file processing
allRestrict or block TGML file processing in affected applications
User awareness training
allTrain users not to open untrusted TGML files
🧯 If You Can't Patch
- Implement application whitelisting to prevent unauthorized code execution
- Use network segmentation to isolate affected systems from critical assets
🔍 How to Verify
Check if Vulnerable:
Check if running affected Schneider Electric software versions; consult vendor advisory for specific version checksCheck Version:
Check product-specific documentation; typically through vendor software interface or system informationVerify Fix Applied:
Verify patch installation through vendor management console or version check commands📡 Detection & Monitoring
Log Indicators:
- Unexpected TGML file processing
- Application crashes when opening graphics files
- Suspicious process creation from graphics applications
Network Indicators:
- Unusual outbound connections from graphics processing systems
- File transfers of TGML files to untrusted sources
SIEM Query:
Process creation events from graphics applications OR file access events for *.tgml files followed by suspicious network activity