SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-27451

This allows an attacker to guess usernames until they find an existing one.

MEDIUM 5.3EPSS 0.38%

Does this matter?

Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
0.38% probability · 31th percentile
CISA KEV
Not listed
Weakness
CWE-204, CWE-203
Affected
endress/meac300-fnade4 firmware
Source
psirt@sick.de

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.