CVE-2026-0667: CWE-754: Improper Check for Unusual or Exceptional Conditions in Schneider Electric SCADAPack 47x
CVE-2026-0667 is a critical vulnerability classified as CWE-754, involving improper checks for unusual or exceptional conditions in software communicating over the Modbus TCP protocol. This flaw can lead to arbitrary code execution, denial of service, and loss of confidentiality and integrity during Modbus TCP communications. No specific affected software versions or patches are currently identified. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability arises from improper handling of unusual or exceptional conditions in the Modbus TCP protocol implementation, potentially allowing attackers to execute arbitrary code, cause denial of service, and compromise confidentiality and integrity of communications. The vulnerability is critical in severity but lacks detailed version or patch information. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code, disrupt service availability, and compromise the confidentiality and integrity of data transmitted over Modbus TCP. This could affect industrial control systems or other environments relying on Modbus TCP communications.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is currently available. Users should monitor vendor communications for updates and apply patches once released.
CVE-2026-0667: CWE-754: Improper Check for Unusual or Exceptional Conditions in Schneider Electric SCADAPack 47x
Description
CVE-2026-0667 is a critical vulnerability classified as CWE-754, involving improper checks for unusual or exceptional conditions in software communicating over the Modbus TCP protocol. This flaw can lead to arbitrary code execution, denial of service, and loss of confidentiality and integrity during Modbus TCP communications. No specific affected software versions or patches are currently identified. There are no known exploits in the wild at this time.
CVSS v4.0
Score 9.3critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper handling of unusual or exceptional conditions in the Modbus TCP protocol implementation, potentially allowing attackers to execute arbitrary code, cause denial of service, and compromise confidentiality and integrity of communications. The vulnerability is critical in severity but lacks detailed version or patch information. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code, disrupt service availability, and compromise the confidentiality and integrity of data transmitted over Modbus TCP. This could affect industrial control systems or other environments relying on Modbus TCP communications.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is currently available. Users should monitor vendor communications for updates and apply patches once released.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q9ph-762q-r4c6
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-0667"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 4.0
Threat ID: 6a6ae5579c2644c7f89a355c
Added to database: 07/30/2026, 05:47:03 UTC
Last enriched: 07/30/2026, 07:26:09 UTC
Last updated: 07/30/2026, 08:51:55 UTC
Views: 5
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