Vulnerability in SICK Industrial Product Reveals Usernames through Login Error Messages
CVE-2025-27451

5.3MEDIUM

Key Information:

Vendor

Endress+hauser

Status
Endress+hauser Meac300-fnade4
Vendor
CVE Published:
3 July 2025

What is CVE-2025-27451?

A vulnerability in SICK's Industrial Product allows attackers to exploit the login process by returning distinct error messages based on the failure reason—incorrect password versus non-existing username. This inconsistency enables malicious actors to systematically guess usernames, increasing the likelihood of unauthorized access. Organizations using affected versions are advised to implement mitigations to prevent such enumeration attacks.

Affected Version(s)

Endress+Hauser MEAC300-FNADE4 0

Endress+Hauser MEAC300-FNADE4 >=0.17.0

References

https://www.endress.com
x_Endress+Hauser
https://sick.com/psirt
x_SICK PSIRT Security Advisories
https://www.cisa.gov/resources-tools/resources/ics-recomm...
x_ICS-CERT recommended practices on Industrial Security

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-27451 : Vulnerability in SICK Industrial Product Reveals Usernames through Login Error Messages