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Fencer Vulns
high 7.5

CVE-2026-6866 json

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

published 2026-05-12 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-29484

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

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.

Patch / fix

  • schneider-electric ecostruxure_panel_server_pas400_firmware 002.006.000
  • schneider-electric ecostruxure_panel_server_pas600_firmware 002.006.000
  • schneider-electric ecostruxure_panel_server_pas600v2_firmware 002.006.000
  • schneider-electric ecostruxure_panel_server_pas800_firmware 002.006.000
  • schneider-electric ecostruxure_panel_server_pas800v2_firmware 002.006.000

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-160-03 updated cvss 7.5

Schneider Electric EcoStruxure Panel Server

  • Schneider Electric EcoStruxure Panel Server PAS400 <= 002.005.000
    affected: vendor fix se.com
  • Schneider Electric EcoStruxure Panel Server PAS600 <= 002.005.000
    affected: vendor fix se.com
  • Schneider Electric EcoStruxure Panel Server PAS600V2 <= 002.005.000
    affected: vendor fix se.com
  • Schneider Electric EcoStruxure Panel Server PAS800 <= 002.005.000
    affected: vendor fix se.com
  • Schneider Electric EcoStruxure Panel Server PAS800V2 <= 002.005.000
    affected: vendor fix se.com
  • Schneider Electric EcoStruxure Panel Server PAS400 = 002.006.000 Schneider Electric EcoStruxure Panel Server PAS600 = 002.006.000 Schneider Electric EcoStruxure Panel Server PAS600V2 = 002.006.000 Schneider Electric EcoStruxure Panel Server PAS800 = 002.006.000 Schneider Electric EcoStruxure Panel Server PAS800V2 = 002.006.000
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Schneider Electric EcoStruxure™ Panel Server

Classification

Weakness
  • CWE-1188 Initialization of a Resource with an Insecure Default

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.