CVE-2026-35075
Published: 03 June 2026
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 37.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-34071
Vulnerability details
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)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Hardcoded default password in firmware directly enables use of default accounts for remote unauthenticated access.
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Changing default authenticators prior to first use prevents use of default passwords.
Requires authentication that meets guidelines, avoiding default passwords for cryptographic module access.
Threat awareness programs disseminate botnet and scanning activity tied to default passwords, driving organizations to change or enforce non-default credentials before mass exploitation occurs.