Home/CVE/The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attemp
CVE

CVE-2025-27456

The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attemp

The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it susceptible to brute-force attacks.

HIGH · CVSS 7.5 EPSS 0.00354
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-307Improper Restriction of Excessive Authentication Attempts
▤

Affected Products & Versions

1
endress meac300-fnade4 firmwareall versions
▣

Scoring & Timeline

7.5
HIGH · 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:H/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.
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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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