CVE-2025-48397 Auth bypass in Eaton Brightlayer Software Suite (BLSS)
Privileged users can bypass authentication and log in without sufficient credentials when an application protocol is enabled in Eaton BLSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-48397?
CVE-2025-48397 is a high-severity authentication bypass vulnerability in Eaton Brightlayer Software Suite (BLSS), published on 3 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The privileged user could log in without sufficient credentials after enabling an application protocol. This security issue has been fixed in the latest script patch latest version of of Eaton BLSS (7.3.0.SCP004).
Weakness: CWE-306
Which versions are affected by CVE-2025-48397?
How do I fix CVE-2025-48397?
No fix has been published for CVE-2025-48397 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-2025-48397 being exploited?
There is no known exploitation of CVE-2025-48397 in the wild and no public exploit code.
Sources
Also known as GHSA-grvc-rfhw-m5cf.