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CVE-2025-27451

CVE-2025-27451

MEDIUM
5.3
CVSS Score
Published: July 3, 2025 at 11:27 AM UTC
Updated: June 17, 2026 at 09:03 AM UTC
2 products affected across 2 vendorsMEAC300 FNADE4 FirmwareMEAC300-FNADE4

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MEAC300 FNADE4 Firmware· Endress
95%
v ≤ 0.16.0
endress-meac300-fnade4 (same device)
MEAC300-FNADE4· Endress Hauser
60%
v ≤ <=0.16.0
Vendor states this is fixed in >=0.17.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

x_SICK PSIRT Security AdvisoriesVendor Advisoryx_SICK PSIRT Website
Source: [email protected]
https://sick.com/psirt
x_ICS-CERT recommended practices on Industrial SecurityUS Government Resource
Source: [email protected]
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
x_Endress+HauserProduct
Source: [email protected]
https://www.endress.com
x_CVSS v3.1 CalculatorNot Applicable
Source: [email protected]
https://www.first.org/cvss/calculator/3.1
x_The canonical URL.Vendor Advisory
Source: [email protected]
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.json
Vendor Advisory
Source: [email protected]
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdf

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMSICK AG
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-204CWE-203

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