Hardcoded default Password for Service Account

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-35075
StatePUBLISHED
AssignerCERTVDE
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-03 13:16:19 UTC
Updated2026-06-08 17:17:58 UTC
DescriptionAn unauthenticated remote attacker can recover a default, hard coded password from a firmware image and thus gain full access to all affected devices.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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

EPSS: 0.001110000 probability, percentile 0.293340000 (date 2026-06-14)

Problem Types: CWE-1393 | CWE-1393 CWE-1393 Use of Default Password

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Mbs-solutions Double-a Profibus - All All All
Hardware Mbs-solutions Double-a X-link - All All All
Hardware Mbs-solutions Double-x Can - All All All
Hardware Mbs-solutions Double-x Dali - All All All
Hardware Mbs-solutions Double-x Knx - All All All
Hardware Mbs-solutions Double-x Lon - All All All
Hardware Mbs-solutions Double-x M-bus - All All All
Hardware Mbs-solutions Double-x Profinet - All All All
Hardware Mbs-solutions Double-x X-link - All All All
Hardware Mbs-solutions Single-a - All All All
Hardware Mbs-solutions Single-x - All All All
Hardware Mbs-solutions Triple-x Knx Dali - All All All
Hardware Mbs-solutions Triple-x Knx Lon - All All All
Hardware Mbs-solutions Triple-x Knx M-bus - All All All
Hardware Mbs-solutions Triple-x Profinet Dali - All All All
Hardware Mbs-solutions Triple-x Profinet Knx - All All All
Hardware Mbs-solutions Triple-x Profinet Lon - All All All
Hardware Mbs-solutions Triple-x Profinet M-bus - All All All
Operating System Mbs-solutions Universal Gateway Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MBS Single-A affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-A Profibus affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-A X-link affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Single-X affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X CAN affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X DALI affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X KNX affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X LON affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X M-Bus affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X PROFINET affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Double-X X-link affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X KNX DALI affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X KNX LON affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X KNX M-Bus affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X PROFINET DALI affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X PROFINET KNX affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X PROFINET LON affected V1_0_0_0 V6_0_0_7 custom Not specified
CNA MBS Triple-X PROFINET M-Bus affected V1_0_0_0 V6_0_0_7 custom Not specified

References

ReferenceSourceLinkTags
www.certvde.com/en/advisories/VDE-2026-039 [email protected] www.certvde.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Adrien Rey from Cyber Defense Campus Zurich (en)

CNA: Daniel Hulliger from Armasuisse (en)

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