CVE-2025-27451
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-03

Last updated on: 2026-02-06

Assigner: SICK AG

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.
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Meta Information
Published
2025-07-03
Last Modified
2026-02-06
Generated
2026-05-07
AI Q&A
2025-07-03
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
endress meac300-fnade4_firmware to 0.16.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
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.
CWE-203 The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability occurs because the application returns different error messages for failed login attempts depending on whether the username does not exist or the password is incorrect. This behavior allows an attacker to determine which usernames are valid by trying different usernames and observing the error messages.


How can this vulnerability impact me? :

The vulnerability can impact you by allowing an attacker to enumerate valid usernames on your system. This information can be used to facilitate further attacks, such as targeted password guessing or social engineering.


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