CVE-2026-6866

Initialization of a Resource with an Insecure Default vulnerability on EcoStruxure™ Panel Server

HIGH
7.5
CVSS Score
Published: May 12, 2026 at 01:59 PM UTC
Updated: October 26, 2026 at 06:10 PM UTC
6 products affected across 1 vendorEcostruxure Panel Server PAS400 FirmwareEcostruxure Panel Server PAS600V2 FirmwareEcostruxure Panel Server PAS600 Firmware· also runs on 5 platforms

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 002.006.000
Affected range stops below 002.006.000, so it looks safe — our inference, not a vendor statement
schneider-electric-ecostruxure-panel-server-pas400 (same device)
v < 002.006.000
Affected range stops below 002.006.000, so it looks safe — our inference, not a vendor statement
schneider-electric-ecostruxure-panel-server-pas600 (same device)
v < 002.006.000
Affected range stops below 002.006.000, so it looks safe — our inference, not a vendor statement
schneider-electric-ecostruxure-panel-server-pas600v2 (same device)
v < 002.006.000
Affected range stops below 002.006.000, so it looks safe — our inference, not a vendor statement
schneider-electric-ecostruxure-panel-server-pas800 (same device)
v < 002.006.000
Affected range stops below 002.006.000, so it looks safe — our inference, not a vendor statement
schneider-electric-ecostruxure-panel-server-pas800v2 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1188

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