CVE-2025-9574

Missing Authentication Vulnerability

Published Oct 20, 2025 CVSS 4.0 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
Missing Authentication for Critical Function vulnerability in ABB ALS-mini-s4 IP, ABB ALS-mini-s8 IP.This issue affects . 

All firmware versions with the Serial Number from 2000 to 5166

Remediation

Vendor Workaround

Workarounds are specific measures that a user can take to help block an attack. ABB has tested the following workarounds. Although these workarounds will not correct the underlying vulnerability, they can help block known attack vectors. When a workaround reduces functionality, this is identified below as “Impact of workaround”. – Physically disconnect the ethernet port if embedded web server is not being used. Impact of workaround The embedded web server and all its functionalities, incl. load monitoring, alarms, remote configuration, etc. will not be accessible. However, the product will continue functioning as normal based on configured control parameters.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Abb
Abb als-mini-s4
Abb als-mini-s8
Vendors & Products Abb
Abb als-mini-s4
Abb als-mini-s8
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Missing Authentication for Critical Function vulnerability in ABB ALS-mini-s4 IP, ABB ALS-mini-s8 IP.This issue affects .  All firmware versions with the Serial Number from 2000 to 5166
Title Missing Authentication Vulnerability
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H/S:N/AU:Y/R:U/V:D/RE:M/U:Red'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ABB
Published
Updated
Oct 24, 2025, 10:04 AM
Reserved
Aug 28, 2025, 10:04 AM
Status
Deferred
Published
Oct 20, 2025, 5:15 PM
Modified
Oct 18, 2026, 9:10 PM