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CVE

CVE-2025-27451

For failed login attempts, the application returns different error messages depending on whether the login failed due to

For failed login attempts, the application returns different error messages depending on whether the login failed due to an incorrect password or a non-existing username. This allows an attacker to guess usernames until they find an existing one.

MEDIUM · CVSS 5.3 EPSS 0.00382
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-203Observable Discrepancy
CWE-204Observable Response Discrepancy
▤

Affected Products & Versions

1
endress meac300-fnade4 firmware<= 0.16.0
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · psirt@sick.de
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Jul 2025 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://sick.com/psirtVendor Advisory
https://www.cisa.gov/resources-tools/resources/ics-recommended-practicesUS Government Resource
https://www.endress.comProduct
https://www.first.org/cvss/calculator/3.1Not Applicable
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.jsonVendor Advisory
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdfVendor Advisory
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