CVE-2026-35075

Hardcoded default Password for Service Account

State: Published
Severity: 9.3 Critical
Published: Jun 3, 2026
Updated: Jul 3, 2026
Reserved: Apr 1, 2026

Description

An unauthenticated remote attacker can recover a default, hard coded password from a firmware image and thus gain full access to all affected devices.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	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	CERTVDE
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CERTVDE

Weaknesses

CWE-1393 Use of Default Password

Affected Products

Product	Versions
Single-AMBS	V1_00_00 to before V6_00_07Affected
Double-A ProfibusMBS	V1_00_00 to before V6_00_07Affected
Double-A x-linkMBS	V1_00_00 to before V6_00_07Affected
Single-XMBS	V1_00_00 to before V6_00_07Affected
Double-X CANMBS	V1_00_00 to before V6_00_07Affected
Double-X DALIMBS	V1_00_00 to before V6_00_07Affected
Double-X KNXMBS	V1_00_00 to before V6_00_07Affected
Double-X LONMBS	V1_00_00 to before V6_00_07Affected
Double-X M-BusMBS	V1_00_00 to before V6_00_07Affected
Double-X PROFINETMBS	V1_00_00 to before V6_00_07Affected
Double-X x-linkMBS	V1_00_00 to before V6_00_07Affected
Triple-X KNX+DALIMBS	V1_00_00 to before V6_00_07Affected
Triple-X KNX+LONMBS	V1_00_00 to before V6_00_07Affected
Triple-X KNX+M-BusMBS	V1_00_00 to before V6_00_07Affected
Triple-X PROFINET+DALIMBS	V1_00_00 to before V6_00_07Affected
Triple-X PROFINET+KNXMBS	V1_00_00 to before V6_00_07Affected
Triple-X PROFINET+LONMBS	V1_00_00 to before V6_00_07Affected
Triple-X PROFINET+M-BusMBS	V1_00_00 to before V6_00_07Affected

References

https://www.certvde.com/en/advisories/VDE-2026-039/

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