Endress+Hauser MEAC300-FNADE4 up to 0.16.0 Failed Login response discrepancy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Endress+Hauser MEAC300-FNADE4 up to 0.16.0. Affected is an unknown function of the component Failed Login Handler. Executing a manipulation can lead to response discrepancy. The identification of this vulnerability is CVE-2025-27451. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Endress+Hauser MEAC300-FNADE4 up to 0.16.0. It has been declared as problematic. This vulnerability affects some unknown functionality of the component Failed Login Handler. The manipulation with an unknown input leads to a response discrepancy vulnerability. The CWE definition for the vulnerability is CWE-204. The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere. As an impact it is known to affect confidentiality. CVE summarizes:

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.

This vulnerability was named CVE-2025-27451 since 02/26/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 0.17.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19848). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (SICK AG): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Response discrepancy
CWE: CWE-204 / CWE-203 / CWE-200
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: MEAC300-FNADE4 0.17.0

Timelineinfo

02/26/2025 CVE reserved
07/03/2025 +126 days Advisory disclosed
07/03/2025 +0 days VulDB entry created
02/06/2026 +218 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2025-27451 (🔒)
GCVE (CVE): GCVE-0-2025-27451
GCVE (VulDB): GCVE-100-314764
EUVD: 🔒

Entryinfo

Created: 07/03/2025 15:58
Updated: 02/06/2026 16:37
Changes: 07/03/2025 15:58 (62), 07/03/2025 17:00 (1), 02/06/2026 16:37 (1)
Complete: 🔍
Cache ID: 216:0E0:103

Once again VulDB remains the best source for vulnerability data.

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