CVE-2025-4676 Authentication bypass by brute forcing Authentication Headers
Attackers can bypass authentication by brute forcing headers on ABB WebPro SNMP Cards, gaining unauthorized access to the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-4676?
CVE-2025-4676 is a high-severity authentication bypass vulnerability in ABB WebPro SNMP Card PowerValue, published on 7 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Incorrect Implementation of Authentication Algorithm vulnerability in ABB WebPro SNMP Card PowerValue, ABB WebPro SNMP Card PowerValue UL.This issue affects WebPro SNMP Card PowerValue: through 1.1.8.K; WebPro SNMP Card PowerValue UL: through 1.1.8.K.
Weakness: CWE-303
Which versions are affected by CVE-2025-4676?
How do I fix CVE-2025-4676?
No fix has been published for CVE-2025-4676 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-4676 being exploited?
There is no known exploitation of CVE-2025-4676 in the wild and no public exploit code.
Sources
Also known as GHSA-m9qp-frxf-whqw.