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VulnerabilityPublished Updated

CVE-2025-48396: Eaton Brightlayer Software Suite (BLSS) · Unrestricted File Upload

Affects Eaton Brightlayer Software Suite (BLSS)Source CVE Database V5

0

Not known to be exploited · CVSS 8.3 High.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
8.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Eaton Eaton Brightlayer Software Suite (BLSS)Affected
  • =0
Fixed in–

AI-suggested

  1. Immediately apply the official patch for Eaton BLSS version 7.3.0.SCP004 to remediate the vulnerability.
  2. Restrict file upload permissions strictly to trusted users and roles to minimize exposure.
  3. Implement additional server-side validation to enforce strict file type and content checks beyond the vendor patch.
  4. Employ network segmentation to isolate BLSS components from less trusted network zones.
  5. Monitor logs and network traffic for unusual file upload activities or execution attempts.
  6. Conduct regular security audits and penetration testing focusing on file upload functionalities.
  7. Educate administrators and users about the risks of uploading untrusted files and enforce least privilege principles.
  8. Consider deploying application-layer firewalls or web application firewalls (WAFs) with rules to detect and block malicious file uploads targeting BLSS.

Description

Arbitrary code execution is possible due to improper validation of the file upload functionality in Eaton BLSS. This security issue has been fixed in the latest script patch latest version of of Eaton BLSS (7.3.0.SCP004).

References

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