Cyber Resilience

CVE-2026-35075

Mbs-Solutions Universal Gateway Firmware ≤ 6_00_07

Published
03 June 2026
Modified
22 July 2026
Patch / advisory
View advisory
CVSS Score v4 9.3
Click a component to see what it means
Raw vectorCVSS: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 Score 0.0047 38th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2026-35075 is a critical-severity Use of Default Password (CWE-1393) vulnerability in Mbs-Solutions Universal Gateway Firmware. Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Default Accounts (T1078.001); ranked at the 38th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to CM-6 (Configuration Settings) and IA-5 (Authenticator Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

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

CWE(s)
CWE-1393

Related Threats

MITRE ATT&CK Enterprise Techniques

T1078.001 Default Accounts Stealth
Adversaries may obtain and abuse credentials of a default account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-35076Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35080Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35077Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35084Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35079Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35085Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35082Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35083Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35081Same product: Mbs-Solutions Double-A Profibus
CVE-2026-35078Same product: Mbs-Solutions Double-A Profibus

Affected Assets

mbs-solutions
universal gateway firmware
≤ 6_00_07

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

IA-5 Authenticator Management good match

Authenticator management requires verification of identity at initial distribution and secure handling that directly stops default passwords from remaining in use.

CM-6 Configuration Settings good match

Configuration settings establish the most restrictive secure baselines, which include changing or disabling default passwords.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 full match
prevents

Credential management directly requires replacing default passwords with unique, strong credentials.

PR.PS-01 mostly match
prevents

Hardened configuration baselines explicitly prohibit default passwords, covering most of the weakness but not all identity-management aspects.

ID.RA-01 partial match
prevents

Vulnerability scanning will discover default-password instances, enabling remediation, yet does not itself prevent their initial use.

PR.AA-03 partial match
prevents

Authentication policies can enforce non-default passwords but do not address the full scope of credential lifecycle.

PR.AA-05 partial match
prevents

Authorization policies assume credentials already exist and are not default; least-privilege helps limit impact but does not prevent defaults.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.17 Authentication information mostly match
prevents

Mandates secure handling and change of authentication secrets, directly addressing default passwords.

A.8.9 Configuration management mostly match
prevents

Configuration management processes typically enforce changing defaults during hardening.

A.8.5 Secure authentication partial match
mitigates

Requires secure authentication mechanisms, which includes replacing or disabling default credentials.

A.8.18 Use of privileged utility programs none match
none

Utility programs often ship with defaults; control requires secure configuration before use.

A.8.2 Privileged access rights none match
none

Privileged accounts must not retain factory passwords, reducing risk of default-credential abuse.

References