CVE-2026-6866
7.5 · HIGHOverview
CVE-2026-6866 is a high-severity vulnerability affecting schneider-electric ecostruxure_panel_server_pas400_firmware. It was published on May 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
CWE-1188 Initialization of a Resource with an Insecure Default vulnerability exists that could cause unauthorized disclosure of sensitive information when credentials revert to initial settings in rare circumstances, enabling unauthorized authentication using known credentials.
Remediation
Check the references section for vendor advisories and patches from schneider-electric. Update ecostruxure_panel_server_pas400_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| schneider-electric | ecostruxure_panel_server_pas400_firmware | >= 0, < 002.006.000 | Affected |
| schneider-electric | ecostruxure_panel_server_pas600_firmware | >= 0, < 002.006.000 | Affected |
| schneider-electric | ecostruxure_panel_server_pas600v2_firmware | >= 0, < 002.006.000 | Affected |
| schneider-electric | ecostruxure_panel_server_pas800_firmware | >= 0, < 002.006.000 | Affected |
| schneider-electric | ecostruxure_panel_server_pas800v2_firmware | >= 0, < 002.006.000 | Affected |
Frequently Asked Questions
What is CVE-2026-6866?
CVE-2026-6866 is a high-severity vulnerability affecting schneider-electric ecostruxure_panel_server_pas400_firmware. It was published on May 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-6866?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-6866?
Check the references section for vendor advisories and patches from schneider-electric. Update ecostruxure_panel_server_pas400_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-6866?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-6866 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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